CVE-2013-4351

Description

GnuPG 1.4.x, 2.0.x, and 2.1.x treats a key flags subpacket with all bits cleared (no usage permitted) as if it has all bits set (all usage permitted), which might allow remote attackers to bypass intended cryptographic protection mechanisms by leveraging the subkey.

Category

5.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 1.55% Top 20%
Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://thread.gmane.org/gmane.comp.encryption.gpg.devel/17712/focus=18138
http://lists.opensuse.org/opensuse-updates/2013-10/msg00006.html vendor advisory
http://ubuntu.com/usn/usn-1987-1 vendor advisory
http://www.debian.org/security/2013/dsa-2773 vendor advisory
http://www.openwall.com/lists/oss-security/2013/09/13/4 mailing list
http://rhn.redhat.com/errata/RHSA-2013-1459.html vendor advisory
http://lists.opensuse.org/opensuse-updates/2013-10/msg00003.html vendor advisory
http://www.debian.org/security/2013/dsa-2774 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1010137

Frequently Asked Questions

What is the severity of CVE-2013-4351?
CVE-2013-4351 has been scored as a medium severity vulnerability.
How to fix CVE-2013-4351?
To fix CVE-2013-4351, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-4351 being actively exploited in the wild?
It is possible that CVE-2013-4351 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.