NULL pointer dereference in Mit Kerberos 5
CVE-2013-1415
The pkinit_check_kdc_pkid function in plugins/preauth/pkinit/pkinit_crypto_openssl.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 and 1.11.x before 1.11.1 does not properly handle errors during extraction of fields from an X.509 certificate, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed KRB5_PADATA_PK_AS_REQ AS-REQ request.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.037 (89.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000
Affected products
- Mit Kerberos 5 — versions 1.11
- openSUSE — versions 11.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secunia.com/advisories/55040 (Third Party Advisory, third-party-advisory)
- www.mandriva.com/security/advisories (vendor-advisory, Third Party Advisory)
- web.mit.edu/kerberos/www/krb5-1.10/ (Release Notes, Vendor Advisory)
- krbdev.mit.edu/rt/Ticket/Display.html (Vendor Advisory)
- krbdev.mit.edu/rt/Ticket/Display.html (Vendor Advisory)
- web.mit.edu/kerberos/www/krb5-1.11/ (Release Notes, Vendor Advisory)
- github.com/krb5/krb5/commit/f249555301940c6df3a2cdda13b56b5674eebc2e (Patch, Third Party Advisory)
- lists.opensuse.org/opensuse-updates/2013-03/msg00090.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2013-1415?
- CVE-2013-1415 is a vulnerability in Mit Kerberos 5, classified under NULL Pointer Dereference. Published 2013-03-05.
- Is CVE-2013-1415 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.