Out-of-bounds Read in Mit Kerberos 5
CVE-2015-2697
The build_principal_va function in lib/krb5/krb/bld_princ.c in MIT Kerberos 5 (aka krb5) before 1.14 allows remote authenticated users to cause a denial of service (out-of-bounds read and KDC crash) via an initial '\0' character in a long realm field within a TGS request.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.0 (Medium). Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.041 (90.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.041 · newest: 0.041 · change: 0.000
Affected products
- Mit Kerberos 5
- Oracle Solaris — versions 11.3
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.04
- Debian Linux — versions 7.0, 8.0, 9.0
- openSUSE Leap — versions 42.1
- openSUSE — versions 13.1, 13.2
- SUSE Linux Enterprise Desktop — versions 12
- SUSE Linux Enterprise Server — versions 12
- SUSE Linux Enterprise Software Development Kit — versions 12
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/krb5/krb5/commit/f0c094a1b745d91ef2f9a4eae2149aac026a5789 (Patch, Third Party Advisory)
- www.securityfocus.com/bid/77581 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.opensuse.org/opensuse-security-announce/2015-11/msg00006.html (vendor-advisory, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/201611-14 (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1034084 (VDB Entry, Third Party Advisory, vdb-entry)
- www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html (Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2015-11/msg00022.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2015-11/msg00014.html (vendor-advisory, Mailing List, Third Party Advisory)
- krbdev.mit.edu/rt/Ticket/Display.html (Vendor Advisory)
- www.debian.org/security/2015/dsa-3395 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2015-2697?
- CVE-2015-2697 is a vulnerability in Mit Kerberos 5, classified under Out-of-bounds Read. Published 2015-11-09.
- Is CVE-2015-2697 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.