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Bug#863999: marked as done (unblock: picocom/1.7-2)



Your message dated Sat, 03 Jun 2017 07:34:00 +0000
with message-id <5f9f31e2-326e-8247-6aa2-ca8bb8f0a4d8@thykier.net>
and subject line Re: Bug#863999: unblock: picocom/1.7-2
has caused the Debian Bug report #863999,
regarding unblock: picocom/1.7-2
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
863999: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=863999
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message ---
Package: release.debian.org
Severity: normal
User: release.debian.org@packages.debian.org
Usertags: unblock

Please unblock package picocom

A recently discovered vulnerability (CVE-2015-9059) is fixed
with this version. Vcs fields and Uploader change are in line
with version 2.2-1, which is already in experimental.

diff -Nru picocom-1.7/debian/changelog picocom-1.7/debian/changelog
--- picocom-1.7/debian/changelog	2012-04-21 10:49:20.000000000 +0200
+++ picocom-1.7/debian/changelog	2017-06-03 00:21:14.000000000 +0200
@@ -1,3 +1,11 @@
+picocom (1.7-2) unstable; urgency=high
+
+  * Fix CVE-2015-9059 (Closes: #863671).
+  * Add myself to Uploaders.
+  * Add Vcs fields.
+
+ -- W. Martin Borgert <debacle@debian.org>  Fri, 02 Jun 2017 22:21:14 +0000
+
 picocom (1.7-1) unstable; urgency=low
 
   * New upstream release.  Closes: #659590.
diff -Nru picocom-1.7/debian/control picocom-1.7/debian/control
--- picocom-1.7/debian/control	2012-04-21 10:48:42.000000000 +0200
+++ picocom-1.7/debian/control	2017-05-30 11:57:04.000000000 +0200
@@ -2,9 +2,12 @@
 Section: comm
 Priority: optional
 Maintainer: Matt Palmer <mpalmer@debian.org>
+Uploaders: W. Martin Borgert <debacle@debian.org>
 Build-Depends: debhelper (>= 8.0.0)
 Standards-Version: 3.9.3
 Homepage: http://code.google.com/p/picocom/
+Vcs-Browser: https://anonscm.debian.org/cgit/collab-maint/picocom.git
+Vcs-Git: https://anonscm.debian.org/git/collab-maint/picocom.git
 
 Package: picocom
 Architecture: any
diff -Nru picocom-1.7/debian/patches/CVE-2015-9059.patch picocom-1.7/debian/patches/CVE-2015-9059.patch
--- picocom-1.7/debian/patches/CVE-2015-9059.patch	1970-01-01 01:00:00.000000000 +0100
+++ picocom-1.7/debian/patches/CVE-2015-9059.patch	2017-06-03 00:17:23.000000000 +0200
@@ -0,0 +1,500 @@
+Description: fix CVE-2015-9059 (command injection vulnerability)
+Origin: upstream
+Bug-Vendor: https://bugs.debian.org/863671
+Applied-Upstream: https://github.com/npat-efault/picocom/commit/1ebc60b20fbe9a02436d5cbbf8951714e749ddb1
+Last-Update: 2017-06-02
+---
+This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
+--- a/picocom.c
++++ b/picocom.c
+@@ -41,6 +41,7 @@
+ #define _GNU_SOURCE
+ #include <getopt.h>
+ 
++#include "split.h"
+ #include "term.h"
+ 
+ /**********************************************************************/
+@@ -544,6 +545,9 @@
+ 
+ /**********************************************************************/
+ 
++#define RUNCMD_ARGS_MAX 32
++#define RUNCMD_EXEC_FAIL 126
++
+ void
+ child_empty_handler (int signum)
+ {
+@@ -564,7 +568,7 @@
+ }
+ 
+ int
+-run_cmd(int fd, ...)
++run_cmd(int fd, const char *cmd, const char *args_extra)
+ {
+ 	pid_t pid;
+ 	sigset_t sigm, sigm_old;
+@@ -600,9 +604,10 @@
+ 		}
+ 	} else {
+ 		/* child: external program */
+-		int r;
+ 		long fl;
+-		char cmd[512];
++		int argc;
++		char *argv[RUNCMD_ARGS_MAX + 1];
++		int r;
+ 
+ 		establish_child_signal_handlers();
+ 		sigprocmask(SIG_SETMASK, &sigm_old, NULL);
+@@ -619,30 +624,29 @@
+ 		close(STO);
+ 		dup2(fd, STI);
+ 		dup2(fd, STO);
+-		{
+-			/* build command-line */
+-			char *c, *ce;
+-			const char *s;
+-			int n;
+-			va_list vls;
+-			
+-			c = cmd;
+-			ce = cmd + sizeof(cmd) - 1;
+-			va_start(vls, fd);
+-			while ( (s = va_arg(vls, const char *)) ) {
+-				n = strlen(s);
+-				if ( c + n + 1 >= ce ) break;
+-				memcpy(c, s, n); c += n;
+-				*c++ = ' ';
+-			}
+-			va_end(vls);
+-			*c = '\0';
++		/* build command arguments vector */
++		argc = 0;
++		r = split_quoted(cmd, &argc, argv, RUNCMD_ARGS_MAX);
++		if ( r < 0 ) {
++			fd_printf(STDERR_FILENO, "Cannot parse command\n");
++			exit(RUNCMD_EXEC_FAIL);
++		}
++		r = split_quoted(args_extra, &argc, argv, RUNCMD_ARGS_MAX);
++		if ( r < 0 ) {
++			fd_printf(STDERR_FILENO, "Cannot parse extra args\n");
++			exit(RUNCMD_EXEC_FAIL);
++ 		}
++		if ( argc < 1 ) {
++			fd_printf(STDERR_FILENO, "No command given\n");
++			exit(RUNCMD_EXEC_FAIL);
+ 		}
++		argv[argc] = NULL;
++
+ 		/* run extenral command */
+-		fd_printf(STDERR_FILENO, "%s\n", cmd);
+-		r = system(cmd);
+-		if ( WIFEXITED(r) ) exit(WEXITSTATUS(r));
+-		else exit(128);
++		fd_printf(STDERR_FILENO, "$ %s %s\n", cmd, args_extra);
++		execvp(argv[0], argv);
++		fd_printf(STDERR_FILENO, "exec: %s\n", strerror(errno));
++		exit(RUNCMD_EXEC_FAIL);
+ 	}
+ }
+ 
+@@ -807,7 +811,7 @@
+ 					if ( r < -1 && errno == EINTR ) break;
+ 					if ( r <= -1 )
+ 						fatal("cannot read filename: %s", strerror(errno));
+-					run_cmd(tty_fd, opts.send_cmd, fname, NULL);
++					run_cmd(tty_fd, opts.send_cmd, fname);
+ 					break;
+ 				case KEY_RECEIVE:
+ 					fd_printf(STO, "*** file: ");
+@@ -817,7 +821,7 @@
+ 					if ( r <= -1 )
+ 						fatal("cannot read filename: %s", strerror(errno));
+ 					if ( fname[0] )
+-						run_cmd(tty_fd, opts.receive_cmd, fname, NULL);
++						run_cmd(tty_fd, opts.receive_cmd, fname);
+ 					else
+ 						run_cmd(tty_fd, opts.receive_cmd, NULL);
+ 					break;
+--- a/Makefile
++++ b/Makefile
+@@ -13,11 +13,12 @@
+ LDFLAGS = -g
+ LDLIBS =
+ 
+-picocom : picocom.o term.o
++picocom : picocom.o term.o split.o
+ #	$(LD) $(LDFLAGS) -o $@ $+ $(LDLIBS)
+ 
+ picocom.o : picocom.c term.h
+ term.o : term.c term.h
++split.o : split.c split.h
+ 
+ doc : picocom.8 picocom.8.html picocom.8.ps
+ 
+--- /dev/null
++++ b/split.c
+@@ -0,0 +1,236 @@
++/* vi: set sw=4 ts=4:
++ *
++ * split.c
++ *
++ * Function that splits a string intro arguments with quoting.
++ *
++ * by Nick Patavalis (npat@efault.net)
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License as
++ * published by the Free Software Foundation; either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
++ * USA
++ */
++
++#include <stdlib.h>
++#include <string.h>
++#include <assert.h>
++
++#include "split.h"
++
++/* Lexer error end-codes */
++enum err_codes {
++    ERR_OK = 0,         /* no error, string lexed ok */
++    ERR_BS_AT_EOS,      /* backslash at the end of string */
++    ERR_SQ_OPEN_AT_EOS, /* single-quote left open */
++    ERR_DQ_OPEN_AT_EOS  /* double-quote left open */
++};
++
++/* Lexer states */
++enum states {
++    ST_DELIM,
++    ST_QUOTE,
++    ST_ARG,
++    ST_END
++};
++
++/* Special characters */
++#define BS '\\'
++#define SQ '\''
++#define DQ '\"'
++#define NL '\n'
++#define EOS '\0'
++
++#define is_delim(c) \
++    ( (c) == ' ' || (c) == '\t' || (c) == '\n' )
++
++#define is_dq_escapable(c) \
++    ( (c) == '\\' || (c) == '\"' || (c) == '`' || (c) == '$' )
++
++/* Short-hands used in split_quoted() */
++#define push()                                  \
++    do {                                        \
++        char *arg;                              \
++        if ( *argc < argv_sz ) {                \
++            *ap = '\0';                         \
++            arg = strdup(arg_buff);             \
++            /* !! out of mem !! */              \
++            if ( ! arg ) return -1;             \
++            argv[*argc] = arg;                  \
++            (*argc)++;                          \
++        } else {                                \
++            flags |= SPLIT_DROP;                \
++        }                                       \
++        ap = &arg_buff[0];                      \
++    } while(0)
++
++#define save()                                  \
++    do {                                        \
++        if (ap != ae) {                         \
++            *ap++ = *c;                         \
++        } else {                                \
++            flags |= SPLIT_TRUNC;               \
++        }                                       \
++    } while (0)
++
++int
++split_quoted (const char *s, int *argc, char *argv[], int argv_sz)
++{
++    char arg_buff[MAX_ARG_LEN]; /* current argument buffer */
++    char *ap, *ae;              /* arg_buff current ptr & end-guard */
++    const char *c;              /* current input charcter ptr */
++    char qc;                    /* current quote character */
++    enum states state;          /* current state */
++    enum err_codes err;         /* error end-code */
++    int flags;                  /* warning flags */
++
++    ap = &arg_buff[0];
++    ae = &arg_buff[MAX_ARG_LEN - 1];
++    c = &s[0];
++    state = ST_DELIM;
++    err = ERR_OK;
++    flags = 0;
++    qc = SQ; /* silence compiler waring */
++
++    while ( state != ST_END ) {
++        switch (state) {
++        case ST_DELIM:
++            while ( is_delim(*c) ) c++;
++            if ( *c == SQ || *c == DQ ) {
++                qc = *c; c++; state = ST_QUOTE;
++                break;
++            }
++            if ( *c == EOS ) {
++                state = ST_END;
++                break;
++            }
++            if ( *c == BS ) {
++                c++;
++                if ( *c == NL ) {
++                    c++;
++                    break;
++                }
++                if ( *c == EOS ) {
++                    state = ST_END; err = ERR_BS_AT_EOS;
++                    break;
++                }
++            }
++            /* All other cases incl. character after BS */
++            save(); c++; state = ST_ARG;
++            break;
++        case ST_QUOTE:
++            while ( *c != qc && ( *c != BS || qc == SQ ) && *c != EOS ) {
++                save(); c++;
++            }
++            if ( *c == qc ) {
++                c++; state = ST_ARG;
++                break;
++            }
++            if ( *c == BS ) {
++                assert (qc == DQ);
++                c++;
++                if ( *c == NL) {
++                    c++;
++                    break;
++                }
++                if (*c == EOS) {
++                    state = ST_END; err = ERR_BS_AT_EOS;
++                    break;
++                }
++                if ( ! is_dq_escapable(*c) ) {
++                    c--; save(); c++;
++                }
++                save(); c++;
++                break;
++            }
++            if ( *c == EOS ) {
++                state = ST_END; err = ERR_SQ_OPEN_AT_EOS;
++                break;
++            }
++            assert(0);
++        case ST_ARG:
++            if ( *c == SQ || *c == DQ ) {
++                qc = *c; c++; state = ST_QUOTE;
++                break;
++            }
++            if ( is_delim(*c) || *c == EOS ) {
++                push();
++                state = (*c == EOS) ? ST_END : ST_DELIM;
++                c++;
++                break;
++            }
++            if ( *c == BS ) {
++                c++;
++                if ( *c == NL ) {
++                    c++;
++                    break;
++                }
++                if ( *c == EOS ) {
++                    state = ST_END; err = ERR_BS_AT_EOS;
++                    break;
++                }
++            }
++            /* All other cases, incl. character after BS */
++            save(); c++;
++            break;
++        default:
++            assert(0);
++        }
++    }
++
++    return ( err != ERR_OK ) ? -1 : flags;
++}
++
++/**********************************************************************/
++
++#if 0
++
++int
++main (int argc, char *argv[])
++{
++    char *my_argv[12];
++    int my_argc, i, r;
++
++    if ( argc != 2 ) {
++        printf("Usage is: %s: <string to split>\n", argv[0]);
++        exit(EXIT_FAILURE);
++    }
++
++    printf("String to split is: [%s]\n", argv[1]);
++    r = split_quoted(argv[1], &my_argc, my_argv, 12);
++    if ( r < 0 ) {
++        printf("Spliting failed!\n");
++        exit(EXIT_FAILURE);
++    }
++    printf("Split ok. SPLIT_DROP is %s, SPLIT_TRUNC is %s\n",
++           (r & SPLIT_DROP) ? "ON" : "off",
++           (r & SPLIT_TRUNC) ? "ON" : "off");
++
++    for (i = 0; i < my_argc; i++)
++        printf("%02d : [%s]\n", i, my_argv[i]);
++
++    return EXIT_SUCCESS;
++}
++
++#endif
++
++/**********************************************************************/
++
++/*
++ * Local Variables:
++ * mode:c
++ * tab-width: 4
++ * c-basic-offset: 4
++ * indent-tabs-mode: nil
++ * End:
++ */
+--- /dev/null
++++ b/split.h
+@@ -0,0 +1,123 @@
++/* vi: set sw=4 ts=4:
++ *
++ * split.h
++ *
++ * Function that splits a string intro arguments with quoting.
++ *
++ * by Nick Patavalis (npat@efault.net)
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License as
++ * published by the Free Software Foundation; either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
++ * USA
++ */
++
++#ifndef SPLIT_H
++#define SPLIT_H
++
++/* Maximum single-argument length that can be dealt-with by function
++ * split_quoted(). Longer arguments are truncated. See below.
++ */
++#define MAX_ARG_LEN 512
++
++/* Warning flags, set by split_quoted() to its return value.  */
++#define SPLIT_DROP  (1 << 0)  /* argument had to be dropped */
++#define SPLIT_TRUNC (1 << 1)  /* argument had to be truncated */
++
++
++/* F split_quoted
++ *
++ * Splits string "s" into arguments and places them in "argv". Every
++ * argument is a heap-allocated null-terminated string that must be
++ * freed with free(3) when no longer needed. The first argument is
++ * placed in "argv[*argc]", the following at subsequent "argv" slots,
++ * and "*argc" is incremented accordingly. As a result, this function
++ * can be called multiple times to add arguments to the same argument
++ * vector. The argument "argv_sz" is the allocated size (in number of
++ * slots) of the supplied argument vector ("argv"). The function takes
++ * care not to overrun it. If more arguments are present in the
++ * input string "s", they are dropped.
++ *
++ * When spliting the input string intro arguments, quoting rules
++ * very similar to the ones used by the Unix shell are used.
++ *
++ * The following caracters are considered special: ' ' (space), '\t'
++ * (tab), '\n' (newline), '\' (backslash), ''' (single quote), and '"'
++ * (double quote). All other caracters are considered normal and can
++ * become part of an argument without escaping.
++ *
++ * Arguments are separated by runs of the characters: ' ' (space),
++ * '\t', and '\n', which are considered delimiters.
++ *
++ * All characters beetween single quotes (')---without
++ * exceptions---are considered normal and become part of the current
++ * argument (but not the single quotes themselves).
++ *
++ * All characters between double quotes (") are considered normal and
++ * become part of the current argument (but not the double quotes
++ * themselves). Exception to this is the backslash character, when
++ * followed by one of the characters '"', '\', '$', and '`'. In this
++ * case, the backslash is removed, and the next caracter is considered
++ * normal and becomes part of the current argument. When the backslash
++ * is followed by newline, both the backslash and the newline are
++ * removed. In all other cases a backslash, within double quotes, is
++ * considered a normal character (and becomes part of the current
++ * argument). We treat the sequences '\$' and '\`' specially (while
++ * there is no real reason), for better unix-shell compatibility.
++ *
++ * Outside of single or double quotes, every backslash caracter is
++ * removed, and the following character (with the exception of
++ * <newline>, see below) is considered normal and becomes part of the
++ * current argument. If, outside of quotes, a backslash precedes a
++ * <newline>, then both the backslash and the newline are removed.
++ *
++ * Examples:
++ *
++ *      a b c d        --> [a] [b] [c] [d]
++ *      'a  b' c   d   --> [a b] [c] [d]
++ *      'a "b"' c d    --> [a "b"] [c] [d]
++ *      "a 'b'" c d    --> [a 'b'] [c] [d]
++ *      a"b c"  d      --> [ab c] [d]
++ *      a\ b c d       --> [a b] [c] [d]
++ *      \a\b c d       --> [ab] [c] [d]
++ *      \a\\b \\ c d   --> [a\b] [\] [c] [d]
++ *      "a\$\b" c d    --> [a$\b] [c] [d]
++ *      "\a\`\"\b" c d --> [\a`"\b] [c] [d]
++ *
++ * Limitation: This function cannot deal with individual arguments
++ * longer than MAX_ARG_LEN. If such an argument is encountered, it is
++ * truncated accordingly.
++ *
++ * This function returns a non-negative on success, and a negative on
++ * failure. The only causes for failure is a malformed command string
++ * (e.g. un-balanced quotes), or the inability to allocate an argument
++ * string. On success the value returned can be checked against the
++ * warning flags SPLIT_DROP, and SPLIT_TRUNC. If SPLIT_DROP is set,
++ * then a least one argument was dropped as there was no available
++ * slot in "argv" to store it in. If SPLIT_TRUNC is set, then at least
++ * one argument was truncated (see limitation, above).
++ */
++int split_quoted(const char *s, int *argc, char *argv[], int argv_sz);
++
++#endif /* of SPLIT_H */
++
++/**********************************************************************/
++
++/*
++ * Local Variables:
++ * mode:c
++ * tab-width: 4
++ * c-basic-offset: 4
++ * indent-tabs-mode: nil
++ * End:
++ */
diff -Nru picocom-1.7/debian/patches/series picocom-1.7/debian/patches/series
--- picocom-1.7/debian/patches/series	1970-01-01 01:00:00.000000000 +0100
+++ picocom-1.7/debian/patches/series	2017-06-03 00:16:50.000000000 +0200
@@ -0,0 +1 @@
+CVE-2015-9059.patch

unblock picocom/1.7-2

--- End Message ---
--- Begin Message ---
W. Martin Borgert:
> Package: release.debian.org
> Severity: normal
> User: release.debian.org@packages.debian.org
> Usertags: unblock
> 
> Please unblock package picocom
> 
> A recently discovered vulnerability (CVE-2015-9059) is fixed
> with this version. Vcs fields and Uploader change are in line
> with version 2.2-1, which is already in experimental.
> 
> [...]
> 
> unblock picocom/1.7-2
> 


Unblocked, thanks.

~Niels

--- End Message ---

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