Out-of-bounds read in Kerberos 5 - CVE-2015-2697

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Main Vulnerability Database Vulnerabilities #VU32373

Out-of-bounds read in Kerberos 5 - CVE-2015-2697

Published: November 9, 2015 / Updated: July 28, 2020


Vulnerability identifier: #VU32373
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-2697
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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.


Affected software

Kerberos 5
Gentoo Linux
SUSE Linux
Fedora
Opensuse
krb5 (Alpine package)
krb5

How to mitigate CVE-2015-2697

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

krb5 (Alpine package) - update to 1.12.1-r2
krb5 - addressed in versions 1.12.2-18.fc21, 1.12.2-19.fc21, 1.13.2-9.fc22, 1.13.2-10.fc22, 1.13.2-12.fc23

External References

Related Security Bulletins