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Debian Security Advisory 5286-1

Debian Security Advisory 5286-1
Posted Nov 21, 2022
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5286-1 - Greg Hudson discovered integer overflow flaws in the PAC parsing in krb5, the MIT implementation of Kerberos, which may result in remote code execution (in a KDC, kadmin, or GSS or Kerberos application server process), information exposure (to a cross-realm KDC acting maliciously), or denial of service (KDC or kadmind process crash).

tags | advisory, remote, denial of service, overflow, code execution
systems | linux, debian
advisories | CVE-2022-42898
SHA-256 | 4054bf326761b93798ba5e87ed9c11954014650895f0887f6de6e704d4f0b728

Debian Security Advisory 5286-1

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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

- -------------------------------------------------------------------------
Debian Security Advisory DSA-5286-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
November 19, 2022 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : krb5
CVE ID : CVE-2022-42898
Debian Bug : 1024267

Greg Hudson discovered integer overflow flaws in the PAC parsing in
krb5, the MIT implementation of Kerberos, which may result in remote
code execution (in a KDC, kadmin, or GSS or Kerberos application server
process), information exposure (to a cross-realm KDC acting
maliciously), or denial of service (KDC or kadmind process crash).

For the stable distribution (bullseye), this problem has been fixed in
version 1.18.3-6+deb11u3.

We recommend that you upgrade your krb5 packages.

For the detailed security status of krb5 please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/krb5

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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