Home/CVE/The kdc_handle_protected_negotiation function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x, 1
CVE

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

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.

HIGH · CVSS 9.3 EPSS 0.01234
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

1
mit kerberos 5all versions
▣

Scoring & Timeline

9.3
HIGH · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Published to NVD06 Aug 2012 · 04:55 PM
⚑

Vendor Advisories

3
usnUSN-1520-1
rhsaRHSA-2012:1131Important
rhsaRHSA-2012:1200Moderate
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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.txtPatchVendor Advisory
http://www.debian.org/security/2012/dsa-2518
http://www.mandriva.com/security/advisories?name=MDVSA-2012:120
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