Debian Security Advisory

DSA-1916-1 kdelibs -- insufficient input validation

Date Reported:
23 Oct 2009
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 546212.
In Mitre's CVE dictionary: CVE-2009-2702.
More information:

Dan Kaminsky and Moxie Marlinspike discovered that kdelibs, core libraries from the official KDE release, does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.

For the oldstable distribution (etch), this problem has been fixed in version 4:3.5.5a.dfsg.1-8etch3.

Due to a bug in the archive system, the fix for the stable distribution (lenny), will be released as version 4:3.5.10.dfsg.1-0lenny3 once it is available.

For the testing distribution (squeeze), and the unstable distribution (sid), this problem has been fixed in version 4:3.5.10.dfsg.1-2.1.

We recommend that you upgrade your kdelibs packages.

Fixed in:

Debian GNU/Linux 4.0 (etch)

Architecture-independent component:
HP Precision:
Intel IA-32:
Intel IA-64:
Big-endian MIPS:
Little-endian MIPS:
IBM S/390:
Sun Sparc:

MD5 checksums of the listed files are available in the original advisory.