Integer Overflow or Wraparound Affecting krb5 package, versions <1.18.3-6+deb11u3
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Test your applications- Snyk ID SNYK-DEBIAN11-KRB5-3120880
- published 16 Nov 2022
- disclosed 25 Dec 2022
Introduced: 16 Nov 2022
CVE-2022-42898 Open this link in a new tabHow to fix?
Upgrade Debian:11 krb5 to version 1.18.3-6+deb11u3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream krb5 package and not the krb5 package as distributed by Debian.
See How to fix? for Debian:11 relevant fixed versions and status.
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."
References
- https://security-tracker.debian.org/tracker/CVE-2022-42898
- https://github.com/krb5/krb5/commit/ea92d2f0fcceb54a70910fa32e9a0d7a5afc3583
- https://bugzilla.samba.org/show_bug.cgi?id=15203
- https://web.mit.edu/kerberos/advisories/
- https://www.samba.org/samba/security/CVE-2022-42898.html
- https://github.com/heimdal/heimdal/security/advisories/GHSA-64mq-fvfj-5x3c
- https://web.mit.edu/kerberos/krb5-1.20/README-1.20.1.txt
- https://web.mit.edu/kerberos/krb5-1.19/
- https://security.netapp.com/advisory/ntap-20230216-0008/
- https://security.netapp.com/advisory/ntap-20230223-0001/
- https://security.gentoo.org/glsa/202309-06
- https://security.gentoo.org/glsa/202310-06