SB2015110909 - Out-of-bounds read in web.mit.edu krb5
Published: November 9, 2015 Updated: July 28, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2015-2697)
The vulnerability allows a remote attacker to gain access to perform denial of service (DoS) attack.
The vulnerability exists due to a boundary condition within the lib/krb5/krb/bld_princ.c function 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 '' character file. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and crash the affected application.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.
References
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=8252
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00006.html
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00014.html
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00022.html
- http://www.debian.org/security/2015/dsa-3395
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/77581
- http://www.securitytracker.com/id/1034084
- http://www.ubuntu.com/usn/USN-2810-1
- https://github.com/krb5/krb5/commit/f0c094a1b745d91ef2f9a4eae2149aac026a5789
- https://security.gentoo.org/glsa/201611-14