CVE-2022-29824

Description

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.

References

https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.9.14

https://gitlab.gnome.org/GNOME/libxml2/-/commit/6c283d83eccd940bcde15634ac8c7f100e3caefd

https://gitlab.gnome.org/GNOME/libxslt/-/tags

https://gitlab.gnome.org/GNOME/libxml2/-/commit/2554a2408e09f13652049e5ffb0d26196b02ebab

https://lists.fedoraproject.org/archives/list/[email protected]/message/FZOBT5Y6Y2QLDDX2HZGMV7MJMWGXORKK/

https://lists.fedoraproject.org/archives/list/[email protected]/message/P5363EDV5VHZ5C77ODA43RYDCPMA7ARM/

https://lists.debian.org/debian-lts-announce/2022/05/msg00023.html

https://lists.fedoraproject.org/archives/list/[email protected]/message/P3NVZVWFRBXBI3AKZZWUWY6INQQPQVSF/

https://www.debian.org/security/2022/dsa-5142

http://packetstormsecurity.com/files/167345/libxml2-xmlBufAdd-Heap-Buffer-Overflow.html

https://security.netapp.com/advisory/ntap-20220715-0006/

https://www.oracle.com/security-alerts/cpujul2022.html

https://security.gentoo.org/glsa/202210-03

http://packetstormsecurity.com/files/169825/libxml2-xmlParseNameComplex-Integer-Overflow.html

Details

Risk Information

CVSS v2

CVSS v3