- ------------------------------------------------------------------------- Debian Security Advisory DSA-5271-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso November 05, 2022 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : libxml2 CVE ID : CVE-2022-40303 CVE-2022-40304 Debian Bug : 1022224 1022225 Several vulnerabilities were discovered in libxml2, a library providing support to read, modify and write XML and HTML files. CVE-2022-40303 Maddie Stone discovered that missing safety checks in several functions can result in integer overflows when parsing a XML document with the XML_PARSE_HUGE option enabled. CVE-2022-40304 Ned Williamson and Nathan Wachholz discovered a vulnerability when handling detection of entity reference cycles, which may result in corrupted dictionary entries. This flaw may lead to logic errors, including memory errors like double free flaws. For the stable distribution (bullseye), these problems have been fixed in version 2.9.10+dfsg-6.7+deb11u3. We recommend that you upgrade your libxml2 packages. For the detailed security status of libxml2 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/libxml2 Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: [email protected]
Debian: DSA-5271-1: libxml2 security update
November 5, 2022
Several vulnerabilities were discovered in libxml2, a library providing support to read, modify and write XML and HTML files
Summary
CVE-2022-40303
Maddie Stone discovered that missing safety checks in several
functions can result in integer overflows when parsing a XML
document with the XML_PARSE_HUGE option enabled.
CVE-2022-40304
Ned Williamson and Nathan Wachholz discovered a vulnerability when
handling detection of entity reference cycles, which may result in
corrupted dictionary entries. This flaw may lead to logic errors,
including memory errors like double free flaws.
For the stable distribution (bullseye), these problems have been fixed in
version 2.9.10+dfsg-6.7+deb11u3.
We recommend that you upgrade your libxml2 packages.
For the detailed security status of libxml2 please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/libxml2
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: [email protected]
Severity
Several vulnerabilities were discovered in libxml2, a library providing
support to read, modify and write XML and HTML files.
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