Debian Security Advisory
DSA-3395-1 krb5 -- security update
- Date Reported:
- 06 Nov 2015
- Affected Packages:
- krb5
- Vulnerable:
- Yes
- Security database references:
- In the Debian bugtracking system: Bug 803083, Bug 803084, Bug 803088.
In Mitre's CVE dictionary: CVE-2015-2695, CVE-2015-2696, CVE-2015-2697. - More information:
-
Several vulnerabilities were discovered in krb5, the MIT implementation of Kerberos. The Common Vulnerabilities and Exposures project identifies the following problems:
- CVE-2015-2695
It was discovered that applications which call gss_inquire_context() on a partially-established SPNEGO context can cause the GSS-API library to read from a pointer using the wrong type, leading to a process crash.
- CVE-2015-2696
It was discovered that applications which call gss_inquire_context() on a partially-established IAKERB context can cause the GSS-API library to read from a pointer using the wrong type, leading to a process crash.
- CVE-2015-2697
It was discovered that the build_principal_va() function incorrectly handles input strings. An authenticated attacker can take advantage of this flaw to cause a KDC to crash using a TGS request with a large realm field beginning with a null byte.
For the oldstable distribution (wheezy), these problems have been fixed in version 1.10.1+dfsg-5+deb7u4.
For the stable distribution (jessie), these problems have been fixed in version 1.12.1+dfsg-19+deb8u1.
For the testing distribution (stretch), these problems have been fixed in version 1.13.2+dfsg-3.
For the unstable distribution (sid), these problems have been fixed in version 1.13.2+dfsg-3.
We recommend that you upgrade your krb5 packages.
- CVE-2015-2695