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Bug#1112213: marked as done (bookworm-pu: package iperf3/3.12-1+deb12u2)

Your message dated Sat, 06 Sep 2025 12:14:50 +0100
with message-id <ee4c0876608d99eb3f8b333b556fbd92e7a652eb.camel@adam-barratt.org.uk>
and subject line Closing p-u requests for fixes included in 12.12
has caused the Debian Bug report #1112195,
regarding bookworm-pu: package iperf3/3.12-1+deb12u2
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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-- 
1112195: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1112195
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: release.debian.org
Severity: normal
Tags: bookworm
User: release.debian.org@packages.debian.org
Usertags: pu
X-Debbugs-Cc: iperf3@packages.debian.org
Control: affects -1 + src:iperf3

Hi,

I'm iperf3 maintainer and there are two CVE fixed upstream:

CVE-2025-54349
| In iperf before 3.19.1, iperf_auth.c has an off-by-one error and
| resultant heap-based buffer overflow.
https://github.com/esnet/iperf/commit/42280d2292ed5f213bfcb33b2206ebcdb151ae66
patch:
https://github.com/esnet/iperf/commit/42280d2292ed5f213bfcb33b2206ebcdb151ae66.patch

This patch fails to apply but it is easy to do it by hand.

CVE-2025-54350
| In iperf before 3.19.1, iperf_auth.c has a Base64Decode assertion
| failure and application exit upon a malformed authentication
| attempt.
https://github.com/esnet/iperf/commit/de932ea16bc959f839d28d370f0602de52c5def1
patch:
https://github.com/esnet/iperf/commit/de932ea16bc959f839d28d370f0602de52c5def1.patch

This one applies with offset warnings.


Both CVEs will require the SSL authentication, one exploitable before
authentication. This way of using iperf3 is not common enough in my
understanding, so the impact of the bugs is very limited.

I have been emailing with Salvatore Bonaccorso and he thinks (and I
agree) that the fix for bookworm should go to the next point release
instead of releasing a DSA.

I am attaching the debdiff with the changes and I will wait for your
instructions before doing the upload.

Regards,
Roberto

diff -Nru iperf3-3.12/debian/changelog iperf3-3.12/debian/changelog
--- iperf3-3.12/debian/changelog	2023-07-17 10:46:06.000000000 +0200
+++ iperf3-3.12/debian/changelog	2025-08-27 10:17:07.000000000 +0200
@@ -1,3 +1,10 @@
+iperf3 (3.12-1+deb12u2) bookworm-security; urgency=high
+
+  * Fix CVE-2025-54349
+  * Fix CVE-2025-54350
+
+ -- Roberto Lumbreras <rover@debian.org>  Wed, 27 Aug 2025 10:17:07 +0200
+
 iperf3 (3.12-1+deb12u1) bookworm-security; urgency=high
 
   * Non-maintainer upload by the Security Team.
diff -Nru iperf3-3.12/debian/patches/CVE-2025-54349.patch iperf3-3.12/debian/patches/CVE-2025-54349.patch
--- iperf3-3.12/debian/patches/CVE-2025-54349.patch	1970-01-01 01:00:00.000000000 +0100
+++ iperf3-3.12/debian/patches/CVE-2025-54349.patch	2025-08-04 22:52:43.000000000 +0200
@@ -0,0 +1,59 @@
+From: Sarah Larsen <swlarsen@es.net>
+Date: Wed, 25 Jun 2025 15:11:03 +0000
+Subject: [PATCH] Fix off-by-one heap overflow in auth.
+Description:
+  Reported by Han Lee (Apple Information Security)
+  CVE-2025-54349
+
+Index: iperf3-3.12/src/iperf_auth.c
+===================================================================
+--- iperf3-3.12.orig/src/iperf_auth.c	2025-08-04 22:39:57.327278650 +0200
++++ iperf3-3.12/src/iperf_auth.c	2025-08-04 22:48:11.000000000 +0200
+@@ -262,7 +262,8 @@
+ 
+     keysize = RSA_size(rsa);
+     rsa_buffer  = OPENSSL_malloc(keysize * 2);
+-    *plaintext = (unsigned char*)OPENSSL_malloc(keysize);
++    // Note: +1 for NULL
++    *plaintext = (unsigned char*)OPENSSL_malloc(keysize + 1);
+ 
+     BIO *bioBuff   = BIO_new_mem_buf((void*)encryptedtext, encryptedtext_len);
+     rsa_buffer_len = BIO_read(bioBuff, rsa_buffer, keysize * 2);
+@@ -272,7 +273,7 @@
+     OPENSSL_free(rsa_buffer);
+     BIO_free(bioBuff);
+ 
+-    if (plaintext_len < 0) {
++    if (plaintext_len <= 0) {
+       /* We probably shouldn't be printing stuff like this */
+       fprintf(stderr, "%s\n", ERR_error_string(ERR_get_error(), NULL));
+     }
+@@ -318,7 +319,7 @@
+     int plaintext_len;
+     plaintext_len = decrypt_rsa_message(encrypted_b64, encrypted_len_b64, private_key, &plaintext);
+     free(encrypted_b64);
+-    if (plaintext_len < 0) {
++    if (plaintext_len <= 0) {
+         return -1;
+     }
+     plaintext[plaintext_len] = '\0';
+@@ -326,16 +327,19 @@
+     char *s_username, *s_password;
+     s_username = (char *) calloc(plaintext_len, sizeof(char));
+     if (s_username == NULL) {
++	OPENSSL_free(plaintext);
+ 	return -1;
+     }
+     s_password = (char *) calloc(plaintext_len, sizeof(char));
+     if (s_password == NULL) {
++	OPENSSL_free(plaintext);
+ 	free(s_username);
+ 	return -1;
+     }
+ 
+     int rc = sscanf((char *) plaintext, auth_text_format, s_username, s_password, &utc_seconds);
+     if (rc != 3) {
++	OPENSSL_free(plaintext);
+ 	free(s_password);
+ 	free(s_username);
+ 	return -1;
diff -Nru iperf3-3.12/debian/patches/CVE-2025-54350.patch iperf3-3.12/debian/patches/CVE-2025-54350.patch
--- iperf3-3.12/debian/patches/CVE-2025-54350.patch	1970-01-01 01:00:00.000000000 +0100
+++ iperf3-3.12/debian/patches/CVE-2025-54350.patch	2025-08-04 22:48:04.000000000 +0200
@@ -0,0 +1,28 @@
+From: "Bruce A. Mah" <bmah@es.net>
+Date: Tue, 24 Jun 2025 15:58:21 -0700
+Subject: [PATCH] Prevent crash due to assertion failures on malformed
+ authentication attempt.
+Description:
+  Reported by Han Lee (Apple Information Security)
+  CVE-2025-54350
+
+Index: iperf3-3.12/src/iperf_auth.c
+===================================================================
+--- iperf3-3.12.orig/src/iperf_auth.c	2025-08-04 22:46:07.722191519 +0200
++++ iperf3-3.12/src/iperf_auth.c	2025-08-04 22:46:07.718191530 +0200
+@@ -28,7 +28,6 @@
+ #include "iperf_config.h"
+ 
+ #include <string.h>
+-#include <assert.h>
+ #include <time.h>
+ #include <sys/types.h>
+ /* FreeBSD needs _WITH_GETLINE to enable the getline() declaration */
+@@ -150,7 +149,6 @@
+ 
+     BIO_set_flags(bio, BIO_FLAGS_BASE64_NO_NL); //Do not use newlines to flush buffer
+     *length = BIO_read(bio, *buffer, strlen(b64message));
+-    assert(*length == decodeLen); //length should equal decodeLen, else something went horribly wrong
+     BIO_free_all(bio);
+ 
+     return (0); //success
diff -Nru iperf3-3.12/debian/patches/series iperf3-3.12/debian/patches/series
--- iperf3-3.12/debian/patches/series	2023-07-17 10:46:01.000000000 +0200
+++ iperf3-3.12/debian/patches/series	2025-08-04 22:45:56.000000000 +0200
@@ -1,2 +1,4 @@
 03-sctp.patch
 0001-Fix-memory-allocation-hazard-1542-.-1543.patch
+CVE-2025-54349.patch
+CVE-2025-54350.patch

--- End Message ---
--- Begin Message --- 
Package: release.debian.org
Version: 12.12

Hi,

Each of the updates referenced by these requests was included in
today's 12.12 point release for bookworm.

Regards,

Adam

--- End Message ---
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