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Fix CVE-2023-39615 (RHEL-5180)

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Resolves: RHEL-5180
This commit is contained in:
David King 2023-09-14 12:57:53 +01:00
parent adfe0fa27d
commit b0d0f5e8a5
2 changed files with 38 additions and 1 deletions
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32
libxml2-2.11.0-fix-CVE-2023-39615.patch Normal file
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@ -0,0 +1,32 @@
From d0c3f01e110d54415611c5fa0040cdf4a56053f9 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Sat, 6 May 2023 17:47:37 +0200
Subject: [PATCH] parser: Fix old SAX1 parser with custom callbacks
For some reason, xmlCtxtUseOptionsInternal set the start and end element
SAX handlers to the internal DOM builder functions when XML_PARSE_SAX1
was specified. This means that custom SAX handlers could never work with
that flag because these functions would receive the wrong user data
argument and crash immediately.
Fixes #535.
---
parser.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/parser.c b/parser.c
index bb05791d3..0c8bed129 100644
--- a/parser.c
+++ b/parser.c
@@ -14479,8 +14479,6 @@ xmlCtxtUseOptionsInternal(xmlParserCtxtPtr ctxt, int options, const char *encodi
}
#ifdef LIBXML_SAX1_ENABLED
if (options & XML_PARSE_SAX1) {
- ctxt->sax->startElement = xmlSAX2StartElement;
- ctxt->sax->endElement = xmlSAX2EndElement;
ctxt->sax->startElementNs = NULL;
ctxt->sax->endElementNs = NULL;
ctxt->sax->initialized = 1;
--
GitLab

7
libxml2.spec
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@ -1,6 +1,6 @@
Name: libxml2
Version: 2.9.13
Release: 4%{?dist}
Release: 5%{?dist}
Summary: Library providing XML and HTML support
License: MIT
@ -20,6 +20,8 @@ Patch4: libxml2-2.9.13-CVE-2022-40304.patch
Patch5: libxml2-2.9.13-CVE-2023-28484.patch
Patch6: libxml2-2.9.13-CVE-2023-28484.2.patch
Patch7: libxml2-2.9.13-CVE-2023-29469.patch
# https://issues.redhat.com/browse/RHEL-5180
Patch8: libxml2-2.11.0-fix-CVE-2023-39615.patch
BuildRequires: cmake-rpm-macros
BuildRequires: gcc
@ -148,6 +150,9 @@ gzip -9 -c doc/libxml2-api.xml > doc/libxml2-api.xml.gz
%{python3_sitearch}/libxml2mod.so
%changelog
* Thu Sep 14 2023 David King <amigadave@amigadave.com> - 2.9.13-5
- Fix CVE-2023-39615 (RHEL-5180)
* Fri Apr 14 2023 David King <amigadave@amigadave.com> - 2.9.13-4
- Fix CVE-2023-28484 (#2186694)
- Fix CVE-2023-29469 (#2186694)