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Debian Security Advisory 5266-1

Debian Security Advisory 5266-1
Posted Oct 31, 2022
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5266-1 - A heap use-after-free vulnerability after overeager destruction of a shared DTD in the XML_ExternalEntityParserCreate function in Expat, an XML parsing C library, may result in denial of service or potentially the execution of arbitrary code.

tags | advisory, denial of service, arbitrary
systems | linux, debian
advisories | CVE-2022-43680
SHA-256 | 322101dc26693e978fb7c1c772e4722e79ec519d4a8ef492d7c487c1a72f29af

Debian Security Advisory 5266-1

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-----BEGIN PGP SIGNED MESSAGE-----
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- -------------------------------------------------------------------------
Debian Security Advisory DSA-5266-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
October 30, 2022 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : expat
CVE ID : CVE-2022-43680
Debian Bug : 1022743

A heap use-after-free vulnerability after overeager destruction of a
shared DTD in the XML_ExternalEntityParserCreate function in Expat, an
XML parsing C library, may result in denial of service or potentially
the execution of arbitrary code.

For the stable distribution (bullseye), this problem has been fixed in
version 2.2.10-2+deb11u5.

We recommend that you upgrade your expat packages.

For the detailed security status of expat please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/expat

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: debian-security-announce@lists.debian.org
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