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Bug#1100421: marked as done (bookworm-pu: package krb5/1.20.1-2+deb12u3)

Your message dated Sat, 17 May 2025 09:37:57 +0000
with message-id <E1uGDzR-005KHN-P1@coccia.debian.org>
and subject line Close 1100421
has caused the Debian Bug report #1100421,
regarding bookworm-pu: package krb5/1.20.1-2+deb12u3
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.

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-- 
1100421: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1100421
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: release.debian.org
Severity: normal
Tags: bookworm
X-Debbugs-Cc: krb5@packages.debian.org
Control: affects -1 + src:krb5
User: release.debian.org@packages.debian.org
Usertags: pu

[ Reason ]
* CVE-2025-24528

[ Impact ]
* low security bug is no-dsa but should be fixed

[ Tests ]
* automatic upstream test


[ Risks ]
Low code is straightforward

[ Checklist ]
  [X] *all* changes are documented in the d/changelog
  [X] I reviewed all changes and I approve them
  [X] attach debdiff against the package in (old)stable
  [X] the issue is verified as fixed in unstable

[ Changes ]
* Non Maintainer upload by LTS team
* Fixes CVE-2024-26462 (Closes: #1064965)
    A memory leak vulnerability was found in /krb5/src/kdc/ndr.c.
* Fixes CVE-2025-24528 (Closes: #1094730)
    Prevent overflow when calculating ulog block size
* Add Salsa CI

[ Other info ]
None

diff -Nru krb5-1.20.1/debian/changelog krb5-1.20.1/debian/changelog
--- krb5-1.20.1/debian/changelog	2024-07-01 17:31:35.000000000 +0000
+++ krb5-1.20.1/debian/changelog	2025-02-23 17:42:24.000000000 +0000
@@ -1,5 +1,16 @@
+krb5 (1.20.1-2+deb12u3) bookworm; urgency=medium
+
+  * Non Maintainer upload by LTS team
+  * Fixes CVE-2024-26462 (Closes: #1064965)
+    A memory leak vulnerability was found in /krb5/src/kdc/ndr.c.
+  * Fixes CVE-2025-24528 (Closes: #1094730)
+    Prevent overflow when calculating ulog block size
+  * Add Salsa CI
+
+ -- Bastien Roucariès <rouca@debian.org>  Sun, 23 Feb 2025 17:42:24 +0000
+
 krb5 (1.20.1-2+deb12u2) bookworm-security; urgency=high
-	
+
   * CVE-2024-37370: an unauthenticated attacker can modify the
     extra count in an RFC 4121 GSS token, causing the token to appear
     truncated.
diff -Nru krb5-1.20.1/debian/patches/CVE-2024-26462.patch krb5-1.20.1/debian/patches/CVE-2024-26462.patch
--- krb5-1.20.1/debian/patches/CVE-2024-26462.patch	1970-01-01 00:00:00.000000000 +0000
+++ krb5-1.20.1/debian/patches/CVE-2024-26462.patch	2025-02-23 17:42:24.000000000 +0000
@@ -0,0 +1,41 @@
+From: Greg Hudson <ghudson@mit.edu>
+Date: Tue, 5 Mar 2024 17:38:49 -0500
+Subject: CVE-2024-26462 Fix leak in KDC NDR encoding
+
+If the KDC tries to encode a principal containing encode invalid UTF-8
+sequences for inclusion in a PAC delegation info buffer, it will leak
+a small amount of memory in enc_wchar_pointer() before failing.  Fix
+the leak.
+
+ticket: 9115 (new)
+tags: pullup
+target_version: 1.21-next
+origin: https://github.com/krb5/krb5/commit/7d0d85bf99caf60c0afd4dcf91b0c4c683b983fe
+bug: https://mailman.mit.edu/pipermail/kerberos/2024-March/023095.html
+bug-lumingyindetect: https://github.com/LuMingYinDetect/krb5_defects/blob/main/krb5_detect_3.md
+bug-debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1064965
+bug-debian-security: https://security-tracker.debian.org/tracker/CVE-2024-26462
+---
+ src/kdc/ndr.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/src/kdc/ndr.c b/src/kdc/ndr.c
+index 48395ab..d438408 100644
+--- a/src/kdc/ndr.c
++++ b/src/kdc/ndr.c
+@@ -96,14 +96,13 @@ enc_wchar_pointer(const char *utf8, struct encoded_wchars *encoded_out)
+     size_t utf16len, num_wchars;
+     uint8_t *utf16;
+ 
+-    k5_buf_init_dynamic(&b);
+-
+     ret = k5_utf8_to_utf16le(utf8, &utf16, &utf16len);
+     if (ret)
+         return ret;
+ 
+     num_wchars = utf16len / 2;
+ 
++    k5_buf_init_dynamic(&b);
+     k5_buf_add_uint32_le(&b, num_wchars + 1);
+     k5_buf_add_uint32_le(&b, 0);
+     k5_buf_add_uint32_le(&b, num_wchars);
diff -Nru krb5-1.20.1/debian/patches/CVE-2025-24528.patch krb5-1.20.1/debian/patches/CVE-2025-24528.patch
--- krb5-1.20.1/debian/patches/CVE-2025-24528.patch	1970-01-01 00:00:00.000000000 +0000
+++ krb5-1.20.1/debian/patches/CVE-2025-24528.patch	2025-02-23 17:42:24.000000000 +0000
@@ -0,0 +1,62 @@
+From: Zoltan Borbely <Zoltan.Borbely@morganstanley.com>
+Date: Tue, 28 Jan 2025 16:39:25 -0500
+Subject: CVE-2025-24528 Prevent overflow when calculating ulog block size
+
+In kdb_log.c:resize(), log an error and fail if the update size is
+larger than the largest possible block size (2^16-1).
+
+CVE-2025-24528:
+
+In MIT krb5 release 1.7 and later with incremental propagation
+enabled, an authenticated attacker can cause kadmind to write beyond
+the end of the mapped region for the iprop log file, likely causing a
+process crash.
+
+[ghudson@mit.edu: edited commit message and added CVE description]
+
+ticket: 9159 (new)
+tags: pullup
+target_version: 1.21-next
+origin: https://github.com/krb5/krb5/commit/78ceba024b64d49612375be4a12d1c066b0bfbd0
+bug-redhat: https://bugzilla.redhat.com/show_bug.cgi?id=2342796
+bug-debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1094730
+bug-debian-security: https://security-tracker.debian.org/tracker/CVE-2025-24528
+---
+ src/lib/kdb/kdb_log.c | 10 ++++++++--
+ 1 file changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/src/lib/kdb/kdb_log.c b/src/lib/kdb/kdb_log.c
+index 2659a25..68fae91 100644
+--- a/src/lib/kdb/kdb_log.c
++++ b/src/lib/kdb/kdb_log.c
+@@ -183,7 +183,7 @@ extend_file_to(int fd, unsigned int new_size)
+  */
+ static krb5_error_code
+ resize(kdb_hlog_t *ulog, uint32_t ulogentries, int ulogfd,
+-       unsigned int recsize)
++       unsigned int recsize, const kdb_incr_update_t *upd)
+ {
+     unsigned int new_block, new_size;
+ 
+@@ -195,6 +195,12 @@ resize(kdb_hlog_t *ulog, uint32_t ulogentries, int ulogfd,
+     new_block *= ULOG_BLOCK;
+     new_size += ulogentries * new_block;
+ 
++    if (new_block > UINT16_MAX) {
++        syslog(LOG_ERR, _("ulog overflow caused by principal %.*s"),
++               upd->kdb_princ_name.utf8str_t_len,
++               upd->kdb_princ_name.utf8str_t_val);
++        return KRB5_LOG_ERROR;
++    }
+     if (new_size > MAXLOGLEN)
+         return KRB5_LOG_ERROR;
+ 
+@@ -291,7 +297,7 @@ store_update(kdb_log_context *log_ctx, kdb_incr_update_t *upd)
+     recsize = sizeof(kdb_ent_header_t) + upd_size;
+ 
+     if (recsize > ulog->kdb_block) {
+-        retval = resize(ulog, ulogentries, log_ctx->ulogfd, recsize);
++        retval = resize(ulog, ulogentries, log_ctx->ulogfd, recsize, upd);
+         if (retval)
+             return retval;
+     }
diff -Nru krb5-1.20.1/debian/patches/series krb5-1.20.1/debian/patches/series
--- krb5-1.20.1/debian/patches/series	2024-07-01 17:31:35.000000000 +0000
+++ krb5-1.20.1/debian/patches/series	2025-02-23 17:42:24.000000000 +0000
@@ -9,3 +9,5 @@
 0009-Add-.gitignore.patch
 upstream/0010-Ensure-array-count-consistency-in-kadm5-RPC.patch
 CVE-2024-37370
+CVE-2024-26462.patch
+CVE-2025-24528.patch
diff -Nru krb5-1.20.1/debian/salsa-ci.yml krb5-1.20.1/debian/salsa-ci.yml
--- krb5-1.20.1/debian/salsa-ci.yml	1970-01-01 00:00:00.000000000 +0000
+++ krb5-1.20.1/debian/salsa-ci.yml	2025-02-23 17:42:24.000000000 +0000
@@ -0,0 +1,9 @@
+include:
+  - https://salsa.debian.org/salsa-ci-team/pipeline/raw/master/recipes/debian.yml
+
+variables:
+  RELEASE: 'bookworm'
+  SALSA_CI_COMPONENTS: 'main contrib non-free'
+
+blhc:
+  allow_failure: true

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Version: 12.11
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