CVE-2022-29824: Integer Overflow
First published: Tue May 03 2022(Updated: )
In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer*) don't check for integer overflows. This can result in out-of-bounds memory writes. Exploitation requires a victim to open a crafted, multi-gigabyte XML file. Other software using libxml2's buffer functions, for example libxslt through 1.1.35, is affected as well.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/libxml2 | <0:2.9.7-13.el8_6.1 | 0:2.9.7-13.el8_6.1 |
| redhat/libxml2 | <0:2.9.13-1.el9_0.1 | 0:2.9.13-1.el9_0.1 |
| debian/libxml2 | <=2.9.10+dfsg-6.7<=2.9.10+dfsg-6.7+deb11u1<=2.9.4+dfsg1-7+deb10u3<=2.9.13+dfsg-1<=2.9.4+dfsg1-7 | 2.9.14+dfsg-1 2.9.10+dfsg-6.7+deb11u2 2.9.4+dfsg1-7+deb10u4 |
| debian/libxml2 | 2.9.4+dfsg1-7+deb10u4 2.9.4+dfsg1-7+deb10u6 2.9.10+dfsg-6.7+deb11u4 2.9.14+dfsg-1.3~deb12u1 2.9.14+dfsg-1.3 | |
| redhat/libxml2 | <2.9.14 | 2.9.14 |
| libxml2-devel | <2.9.14 | |
| libxslt | <=1.1.35 | |
| Red Hat Fedora | =34 | |
| Red Hat Fedora | =35 | |
| Red Hat Fedora | =36 | |
| Debian Linux | =9.0 | |
| Debian Linux | =10.0 | |
| Debian Linux | =11.0 | |
| NetApp Active IQ Unified Manager | ||
| IBM Data ONTAP | ||
| NetApp ONTAP Antivirus Connector | ||
| NetApp Manageability SDK | ||
| NetApp ONTAP Select Deploy | ||
| NetApp SMI-S Provider | ||
| NetApp SnapDrive for Unix | ||
| NetApp SnapManager for Hyper-V | ||
| NetApp SolidFire & HCI Management Node | ||
| Oracle Storage Cloud Software Appliance | =8.8 | |
| NetApp H300S Firmware | ||
| NetApp H300S Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H700S | ||
| NetApp H700S | ||
| NetApp H410S | ||
| NetApp H410S Firmware | ||
| NetApp H410C | ||
| NetApp H410C Firmware |
Remedy
Avoid passing large inputs to the libxml2 library.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-29824 https://nvd.nist.gov/vuln/detail/CVE-2022-29824
- https://bugzilla.redhat.com/show_bug.cgi?id=2082158
- https://access.redhat.com/errata/RHSA-2022:5317
- https://access.redhat.com/errata/RHSA-2022:5250
- https://access.redhat.com/errata/RHSA-2022:8841
- https://access.redhat.com/security/cve/cve-2022-29824
- https://security-tracker.debian.org/tracker/CVE-2022-29824
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-29824
- https://gitlab.gnome.org/GNOME/libxml2/-/commit/2554a2408e09f13652049e5ffb0d26196b02ebab
- https://mapreri.org
- https://launchpad.net/~mapreri
- https://qa.debian.org/developer.php?login=mattia
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1010526
- https://gitlab.gnome.org/GNOME/libxml2/-/commit/6c283d83eccd940bcde15634ac8c7f100e3caefd
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2272
- https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.9.14
- https://gitlab.gnome.org/GNOME/libxslt/-/tags
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2082277
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2082279
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2082280
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2082278
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2082281
- http://packetstormsecurity.com/files/167345/libxml2-xmlBufAdd-Heap-Buffer-Overflow.html
- http://packetstormsecurity.com/files/169825/libxml2-xmlParseNameComplex-Integer-Overflow.html
- https://lists.debian.org/debian-lts-announce/2022/05/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FZOBT5Y6Y2QLDDX2HZGMV7MJMWGXORKK/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P3NVZVWFRBXBI3AKZZWUWY6INQQPQVSF/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P5363EDV5VHZ5C77ODA43RYDCPMA7ARM/
- https://security.gentoo.org/glsa/202210-03
- https://security.netapp.com/advisory/ntap-20220715-0006/
- https://www.debian.org/security/2022/dsa-5142
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZOBT5Y6Y2QLDDX2HZGMV7MJMWGXORKK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P5363EDV5VHZ5C77ODA43RYDCPMA7ARM/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3NVZVWFRBXBI3AKZZWUWY6INQQPQVSF/
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is CVE-2022-29824?
CVE-2022-29824 is a vulnerability in the libxml2 library that can result in out-of-bounds memory writes.
How severe is CVE-2022-29824?
CVE-2022-29824 has a severity rating of 7.4, indicating a high severity.
Which software is affected by CVE-2022-29824?
The libxml2 library versions before 2.9.14 are affected by CVE-2022-29824.
How can I fix CVE-2022-29824?
To fix CVE-2022-29824, update to libxml2 version 2.9.14 or later.
Where can I find more information about CVE-2022-29824?
More information about CVE-2022-29824 can be found in the references provided: [reference 1], [reference 2], [reference 3].
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