Vulnerability Monitor

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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.

Published

2015-11-09T03:59:03.343

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

8.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-125

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mit	kerberos_5	< 1.14	Yes
Operating System	oracle	solaris	11.3	Yes
Operating System	canonical	ubuntu_linux	12.04	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	15.04	Yes
Operating System	canonical	ubuntu_linux	15.10	Yes
Operating System	debian	debian_linux	7.0	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	debian	debian_linux	9.0	Yes
Operating System	opensuse	leap	42.1	Yes
Operating System	opensuse	opensuse	13.1	Yes
Operating System	opensuse	opensuse	13.2	Yes
Operating System	suse	linux_enterprise_desktop	12	Yes
Operating System	suse	linux_enterprise_server	12	Yes
Operating System	suse	linux_enterprise_software_development_kit	12	Yes

References

http://krbdev.mit.edu/rt/Ticket/Display.html?id=8252 Vendor Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00006.html Mailing List, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00014.html Mailing List, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00022.html Mailing List, Third Party Advisory ([email protected])
http://www.debian.org/security/2015/dsa-3395 Third Party Advisory ([email protected])
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/77581 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1034084 Third Party Advisory, VDB Entry ([email protected])
http://www.ubuntu.com/usn/USN-2810-1 Third Party Advisory ([email protected])
https://github.com/krb5/krb5/commit/f0c094a1b745d91ef2f9a4eae2149aac026a5789 Patch, Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/201611-14 Third Party Advisory ([email protected])
http://krbdev.mit.edu/rt/Ticket/Display.html?id=8252 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00006.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00014.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00022.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2015/dsa-3395 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/77581 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1034084 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/USN-2810-1 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/krb5/krb5/commit/f0c094a1b745d91ef2f9a4eae2149aac026a5789 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201611-14 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)