CVE-2022-42898

Description

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://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/

Details