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gnu: expat: Fix security vulnerabilities.
Fixes CVE-2024-45490, CVE-2024-45491, CVE-2024-45492. * gnu/packages/xml.scm (expat)[replacement]: New field. (expat/fixed): New variable. * gnu/packages/patches/expat-CVE-2024-45490.patch, gnu/packages/patches/expat-CVE-2024-45491.patch, gnu/packages/patches/expat-CVE-2024-45492.patch: New files. * gnu/local.mk (dist_patch_DATA): Register them. Change-Id: I74d5d7bce98d6c983b989c1afec7cf28777d1617
This commit is contained in:
Efraim Flashner
parent
1b6ce1796a
commit
610b395424
5 changed files with 117 additions and 1 deletions
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@ -1205,6 +1205,9 @@ dist_patch_DATA = \
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%D%/packages/patches/esmtp-add-lesmtp.patch \
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%D%/packages/patches/eudev-rules-directory.patch \
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%D%/packages/patches/exercism-disable-self-update.patch \
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%D%/packages/patches/expat-CVE-2024-45490.patch \
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%D%/packages/patches/expat-CVE-2024-45491.patch \
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%D%/packages/patches/expat-CVE-2024-45492.patch \
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%D%/packages/patches/extempore-unbundle-external-dependencies.patch \
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%D%/packages/patches/extundelete-e2fsprogs-1.44.patch \
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%D%/packages/patches/fail2ban-0.11.2_CVE-2021-32749.patch \
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34
gnu/packages/patches/expat-CVE-2024-45490.patch
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34
gnu/packages/patches/expat-CVE-2024-45490.patch
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@ -0,0 +1,34 @@
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https://github.com/libexpat/libexpat/commit/5c1a31642e243f4870c0bd1f2afc7597976521bf.patch
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Fixed in 2.6.3.
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Takes only 1 of the 3 patches from
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https://github.com/libexpat/libexpat/pull/890 to take the fix and not the
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tests because that part doesn't apply cleanly.
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From 5c1a31642e243f4870c0bd1f2afc7597976521bf Mon Sep 17 00:00:00 2001
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From: Sebastian Pipping <sebastian@pipping.org>
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Date: Mon, 19 Aug 2024 22:26:07 +0200
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Subject: [PATCH] lib: Reject negative len for XML_ParseBuffer
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Reported by TaiYou
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---
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expat/lib/xmlparse.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/lib/xmlparse.c b/lib/xmlparse.c
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index 91682c188..ba1038119 100644
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--- a/lib/xmlparse.c
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+++ b/lib/xmlparse.c
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@@ -2038,6 +2038,12 @@ XML_ParseBuffer(XML_Parser parser, int len, int isFinal) {
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if (parser == NULL)
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return XML_STATUS_ERROR;
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+
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+ if (len < 0) {
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+ parser->m_errorCode = XML_ERROR_INVALID_ARGUMENT;
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+ return XML_STATUS_ERROR;
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+ }
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+
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switch (parser->m_parsingStatus.parsing) {
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case XML_SUSPENDED:
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parser->m_errorCode = XML_ERROR_SUSPENDED;
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34
gnu/packages/patches/expat-CVE-2024-45491.patch
Normal file
34
gnu/packages/patches/expat-CVE-2024-45491.patch
Normal file
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@ -0,0 +1,34 @@
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https://github.com/libexpat/libexpat/commit/8e439a9947e9dc80a395c0c7456545d8d9d9e421.patch
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Fixed in 2.6.3.
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From 8e439a9947e9dc80a395c0c7456545d8d9d9e421 Mon Sep 17 00:00:00 2001
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From: Sebastian Pipping <sebastian@pipping.org>
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Date: Mon, 19 Aug 2024 22:34:13 +0200
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Subject: [PATCH] lib: Detect integer overflow in dtdCopy
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Reported by TaiYou
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---
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expat/lib/xmlparse.c | 10 ++++++++++
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1 file changed, 10 insertions(+)
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diff --git a/lib/xmlparse.c b/lib/xmlparse.c
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index 91682c188..e2327bdcf 100644
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--- a/lib/xmlparse.c
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+++ b/lib/xmlparse.c
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@@ -7016,6 +7016,16 @@ dtdCopy(XML_Parser oldParser, DTD *newDtd, const DTD *oldDtd,
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if (! newE)
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return 0;
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if (oldE->nDefaultAtts) {
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+ /* Detect and prevent integer overflow.
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+ * The preprocessor guard addresses the "always false" warning
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+ * from -Wtype-limits on platforms where
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+ * sizeof(int) < sizeof(size_t), e.g. on x86_64. */
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+#if UINT_MAX >= SIZE_MAX
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+ if ((size_t)oldE->nDefaultAtts
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+ > ((size_t)(-1) / sizeof(DEFAULT_ATTRIBUTE))) {
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+ return 0;
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+ }
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+#endif
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newE->defaultAtts
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= ms->malloc_fcn(oldE->nDefaultAtts * sizeof(DEFAULT_ATTRIBUTE));
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if (! newE->defaultAtts) {
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33
gnu/packages/patches/expat-CVE-2024-45492.patch
Normal file
33
gnu/packages/patches/expat-CVE-2024-45492.patch
Normal file
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@ -0,0 +1,33 @@
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https://github.com/libexpat/libexpat/commit/9bf0f2c16ee86f644dd1432507edff94c08dc232.patch
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Fixed in 2.6.3.
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From 9bf0f2c16ee86f644dd1432507edff94c08dc232 Mon Sep 17 00:00:00 2001
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From: Sebastian Pipping <sebastian@pipping.org>
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Date: Mon, 19 Aug 2024 22:37:16 +0200
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Subject: [PATCH] lib: Detect integer overflow in function nextScaffoldPart
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Reported by TaiYou
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---
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expat/lib/xmlparse.c | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/lib/xmlparse.c b/lib/xmlparse.c
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index 91682c188..f737575ea 100644
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--- a/lib/xmlparse.c
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+++ b/lib/xmlparse.c
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@@ -7558,6 +7558,15 @@ nextScaffoldPart(XML_Parser parser) {
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int next;
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if (! dtd->scaffIndex) {
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+ /* Detect and prevent integer overflow.
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+ * The preprocessor guard addresses the "always false" warning
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+ * from -Wtype-limits on platforms where
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+ * sizeof(unsigned int) < sizeof(size_t), e.g. on x86_64. */
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+#if UINT_MAX >= SIZE_MAX
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+ if (parser->m_groupSize > ((size_t)(-1) / sizeof(int))) {
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+ return -1;
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+ }
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+#endif
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dtd->scaffIndex = (int *)MALLOC(parser, parser->m_groupSize * sizeof(int));
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if (! dtd->scaffIndex)
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return -1;
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@ -5,7 +5,7 @@
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;;; Copyright © 2015 Sou Bunnbu <iyzsong@gmail.com>
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;;; Copyright © 2015, 2016, 2017, 2018, 2020 Ricardo Wurmus <rekado@elephly.net>
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;;; Copyright © 2015, 2016, 2017 Mark H Weaver <mhw@netris.org>
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;;; Copyright © 2015-2018, 2020-2022 Efraim Flashner <efraim@flashner.co.il>
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;;; Copyright © 2015-2018, 2020-2022, 2024 Efraim Flashner <efraim@flashner.co.il>
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;;; Copyright © 2015 Raimon Grau <raimonster@gmail.com>
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;;; Copyright © 2016 Mathieu Lirzin <mthl@gnu.org>
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;;; Copyright © 2016, 2017 Leo Famulari <leo@famulari.name>
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@ -125,6 +125,7 @@ (define-public expat
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(package
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(name "expat")
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(version "2.5.0")
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(replacement expat/fixed)
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(source (let ((dot->underscore (lambda (c) (if (char=? #\. c) #\_ c))))
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(origin
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(method url-fetch)
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@ -160,6 +161,17 @@ (define-public expat
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things the parser might find in the XML document (like start tags).")
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(license license:expat)))
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(define-public expat/fixed
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(hidden-package
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(package
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(inherit expat)
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(replacement expat/fixed)
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(source (origin
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(inherit (package-source expat))
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(patches (search-patches "expat-CVE-2024-45490.patch"
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"expat-CVE-2024-45491.patch"
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"expat-CVE-2024-45492.patch")))))))
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(define-public libebml
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(package
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(name "libebml")
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