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Fix CVE-2025-24928 (RHEL-80142)

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Resolves: RHEL-80142
This commit is contained in:
David King 2025-02-26 08:44:35 +00:00
parent 77f26d1051
commit fe82a7d33c
2 changed files with 63 additions and 1 deletions
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57
libxml2-2.9.13-CVE-2025-24928.patch Normal file
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@ -0,0 +1,57 @@
From 858ca26c0689161a6b903a6682cc8a1cc10a0ea8 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Tue, 11 Feb 2025 17:30:40 +0100
Subject: [PATCH] [CVE-2025-24928] Fix stack-buffer-overflow in
xmlSnprintfElements
Fixes #847.
---
valid.c | 25 +++++++++++++------------
1 file changed, 13 insertions(+), 12 deletions(-)
diff --git a/valid.c b/valid.c
index 76d657d62..abefdc50a 100644
--- a/valid.c
+++ b/valid.c
@@ -5057,25 +5057,26 @@ xmlSnprintfElements(char *buf, int size, xmlNodePtr node, int glob) {
return;
}
switch (cur->type) {
- case XML_ELEMENT_NODE:
+ case XML_ELEMENT_NODE: {
+ int qnameLen = xmlStrlen(cur->name);
+
+ if ((cur->ns != NULL) && (cur->ns->prefix != NULL))
+ qnameLen += xmlStrlen(cur->ns->prefix) + 1;
+ if (size - len < qnameLen + 10) {
+ if ((size - len > 4) && (buf[len - 1] != '.'))
+ strcat(buf, " ...");
+ return;
+ }
if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
- if (size - len < xmlStrlen(cur->ns->prefix) + 10) {
- if ((size - len > 4) && (buf[len - 1] != '.'))
- strcat(buf, " ...");
- return;
- }
strcat(buf, (char *) cur->ns->prefix);
strcat(buf, ":");
}
- if (size - len < xmlStrlen(cur->name) + 10) {
- if ((size - len > 4) && (buf[len - 1] != '.'))
- strcat(buf, " ...");
- return;
- }
- strcat(buf, (char *) cur->name);
+ if (cur->name != NULL)
+ strcat(buf, (char *) cur->name);
if (cur->next != NULL)
strcat(buf, " ");
break;
+ }
case XML_TEXT_NODE:
if (xmlIsBlankNode(cur))
break;
--
GitLab

7
libxml2.spec
View File

@ -1,6 +1,6 @@
Name: libxml2 Name: libxml2
Version: 2.9.13 Version: 2.9.13
Release: 8%{?dist} Release: 9%{?dist}
Summary: Library providing XML and HTML support Summary: Library providing XML and HTML support
License: MIT License: MIT
@ -28,6 +28,8 @@ Patch9: libxml2-2.11.6-CVE-2024-25062.patch
Patch10: libxml2-2.9.13-CVE-2022-49043.patch Patch10: libxml2-2.9.13-CVE-2022-49043.patch
# https://issues.redhat.com/browse/RHEL-80127 # https://issues.redhat.com/browse/RHEL-80127
Patch11: libxml2-2.9.13-CVE-2024-56171.patch Patch11: libxml2-2.9.13-CVE-2024-56171.patch
# https://issues.redhat.com/browse/RHEL-80142
Patch12: libxml2-2.9.13-CVE-2025-24928.patch
BuildRequires: cmake-rpm-macros BuildRequires: cmake-rpm-macros
BuildRequires: gcc BuildRequires: gcc
@ -156,6 +158,9 @@ gzip -9 -c doc/libxml2-api.xml > doc/libxml2-api.xml.gz
%{python3_sitearch}/libxml2mod.so %{python3_sitearch}/libxml2mod.so
%changelog %changelog
* Wed Feb 26 2025 David King <dking@redhat.com> - 2.9.13-9
- Fix CVE-2025-24928 (RHEL-80142)
* Tue Feb 25 2025 David King <dking@redhat.com> - 2.9.13-8 * Tue Feb 25 2025 David King <dking@redhat.com> - 2.9.13-8
- Fix CVE-2024-56171 (RHEL-80127) - Fix CVE-2024-56171 (RHEL-80127)