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Debian Security Advisory 5344-1

Debian Security Advisory 5344-1
Posted Feb 8, 2023
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5344-1 - Helmut Grohne discovered a flaw in Heimdal, an implementation of Kerberos 5 that aims to be compatible with MIT Kerberos. The backports of fixes for CVE-2022-3437 accidentally inverted important memory comparisons in the arcfour-hmac-md5 and rc4-hmac integrity check handlers for gssapi, resulting in incorrect validation of message integrity codes.

tags | advisory
systems | linux, debian
advisories | CVE-2022-45142
SHA-256 | 7c5ace0a61c41b914bf85d0ce46cb1382133026bec34cdba70e3112755a5d2d6

Debian Security Advisory 5344-1

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Hash: SHA512

- -------------------------------------------------------------------------
Debian Security Advisory DSA-5344-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
February 08, 2023 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : heimdal
CVE ID : CVE-2022-45142
Debian Bug : 1030849

Helmut Grohne discovered a flaw in Heimdal, an implementation of
Kerberos 5 that aims to be compatible with MIT Kerberos. The backports
of fixes for CVE-2022-3437 accidentally inverted important memory
comparisons in the arcfour-hmac-md5 and rc4-hmac integrity check
handlers for gssapi, resulting in incorrect validation of message
integrity codes.

For the stable distribution (bullseye), this problem has been fixed in
version 7.7.0+dfsg-2+deb11u3.

We recommend that you upgrade your heimdal packages.

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

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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