CVE-2012-1015
The kdc_handle_protected_negotiation function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x, 1.9.x before 1.9.5, and 1.10.x before 1.10.3 attempts to calculate a checksum before verifying that the key type is appropriate for a…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.81%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The kdc_handle_protected_negotiation function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x, 1.9.x before 1.9.5, and 1.10.x before 1.10.3 attempts to calculate a checksum before verifying that the key type is appropriate for a checksum, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized pointer free, heap memory corruption, and daemon crash) via a crafted AS-REQ request.
- CVSS 2.0
- 9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
- EPSS
- 4.81% probability · 91th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- mit/kerberos 5
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-updates/2012-08/msg00016.html
- http://rhn.redhat.com/errata/RHSA-2012-1131.html
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2012-001.txtPatch, Vendor Advisory
- http://www.debian.org/security/2012/dsa-2518
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:120
- http://lists.opensuse.org/opensuse-updates/2012-08/msg00016.html
- http://rhn.redhat.com/errata/RHSA-2012-1131.html
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2012-001.txtPatch, Vendor Advisory
- http://www.debian.org/security/2012/dsa-2518
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:120
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.