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 bef...
HighCVSS 9.3
EPSS 4.8%
- Published
- Updated
- Exploit status
- No public exploit known
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/krb5(Debian:12) | < 1.10.1+dfsg-2 | 1.10.1+dfsg-2 |
| debian/krb5(Debian:13) | < 1.10.1+dfsg-2 | 1.10.1+dfsg-2 |
| debian/krb5(Debian:14) | < 1.10.1+dfsg-2 | 1.10.1+dfsg-2 |
| mit kerberos 5 | = 1.8 | No fix listed |
| mit kerberos 5 | = 1.8.1 | No fix listed |
| mit kerberos 5 | = 1.8.2 | No fix listed |
| mit kerberos 5 | = 1.8.3 | No fix listed |
| mit kerberos 5 | = 1.8.4 | No fix listed |
| mit kerberos 5 | = 1.8.5 | No fix listed |
| mit kerberos 5 | = 1.8.6 | No fix listed |
| mit kerberos 5 | = 1.9.4 | No fix listed |
| mit kerberos 5 | = 1.10 | No fix listed |
| mit kerberos 5 | = 1.10.1 | No fix listed |
| mit kerberos 5 | = 1.10.2 | No fix listed |
References
- Debian Security Tracker CVE-2012-1015 vendor-advisory
- openSUSE-SU-2012:0967 vendor-advisory
- RHSA-2012:1131 vendor-advisory
- web.mit.edu patch vendor-advisory
- DSA-2518 vendor-advisory
- MDVSA-2012:120 vendor-advisory
- bugs.debian.org issue-tracking