Vulnerability Details : 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 category: Denial of service
Products affected by CVE-2015-2697
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_desktop:12:-:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_server:12:-:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_software_development_kit:12:-:*:*:*:*:*:*
- cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2015-2697
6.34%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 90 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-2697
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:N/I:N/A:P |
8.0
|
2.9
|
NIST |
CWE ids for CVE-2015-2697
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2015-2697
-
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00022.html
[security-announce] openSUSE-SU-2015:1997-1: important: Security updateMailing List;Third Party Advisory
-
http://www.debian.org/security/2015/dsa-3395
Debian -- Security Information -- DSA-3395-1 krb5Third Party Advisory
-
http://krbdev.mit.edu/rt/Ticket/Display.html?id=8252
#8252: Fix build_principal memory bug [CVE-2015-2697]Vendor Advisory
-
http://www.securitytracker.com/id/1034084
MIT Kerberos Multiple Bugs Let Remote Users Cause the Target Service to Crash - SecurityTrackerThird Party Advisory;VDB Entry
-
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
Oracle Solaris Bulletin - April 2016Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00006.html
[security-announce] SUSE-SU-2015:1897-1: important: Security update forMailing List;Third Party Advisory
-
https://security.gentoo.org/glsa/201611-14
MIT Kerberos 5: Multiple vulnerabilities (GLSA 201611-14) — Gentoo securityThird Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00014.html
[security-announce] openSUSE-SU-2015:1928-1: important: Security updateMailing List;Third Party Advisory
-
http://www.securityfocus.com/bid/77581
MIT Kerberos 5 CVE-2015-2697 Remote Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
http://www.ubuntu.com/usn/USN-2810-1
USN-2810-1: Kerberos vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://github.com/krb5/krb5/commit/f0c094a1b745d91ef2f9a4eae2149aac026a5789
Fix build_principal memory bug [CVE-2015-2697] · krb5/krb5@f0c094a · GitHubPatch;Third Party Advisory
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