PT-2009-5091 · Kde · Kde Kssl

Tomas Hoger · Published 2009-09-08 · Updated 2012-01-19 · CVE-2009-2702

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions KDE KSSL in kdelibs versions 3.5.4, 4.2.4, and 4.3

Description The issue arises from improper handling of a '0' character in a domain name within the Subject Alternative Name field of an X.509 certificate. This allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.

Recommendations For versions 3.5.4, 4.2.4, and 4.3, consider disabling the use of X.509 certificates with '0' characters in the domain name of the Subject Alternative Name field until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-310

Related Identifiers

CVE-2009-2702

DSA-1916-1

Affected Products

Kde Kssl

References · 7

• https://osv.dev/vulnerability/CVE-2009-2702 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2009-2702 · Security Note
• http://secunia.com/advisories/36468 · Vendor Advisory
• http://vupen.com/english/advisories/2009/2532 · Vendor Advisory
• http://mandriva.com/security/advisories?name=MDVSA-2009:330 · Vendor Advisory
• http://mandriva.com/security/advisories?name=MDVSA-2011:162 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=520661 · Note