Information disclosure in Gnupg
CVE-2016-6313
The mixing functions in the random number generator in Libgcrypt before 1.5.6, 1.6.x before 1.6.6, and 1.7.x before 1.7.3 and GnuPG before 1.4.21 make it easier for attackers to obtain the values of 160 bits by leveraging knowledge of the previous 4640 bits.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.036 (89.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.036 · newest: 0.036 · change: 0.000
Affected products
- Gnupg
- Gnupg Libgcrypt — versions 1.6.0, 1.6.1, 1.6.2
- Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04
- Debian Linux — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.debian.org/security/2016/dsa-3650 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201612-01 (vendor-advisory)
- www.ubuntu.com/usn/USN-3064-1 (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2016/dsa-3649 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201610-04 (vendor-advisory)
- www.securitytracker.com/id/1036635 (vdb-entry)
- lists.gnupg.org/pipermail/gnupg-announce/2016q3/000395.html (Vendor Advisory, mailing-list, Mailing List)
- git.gnupg.org/cgi-bin/gitweb.cgi
- rhn.redhat.com/errata/RHSA-2016-2674.html (vendor-advisory)
- www.securityfocus.com/bid/92527 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2016-6313?
- CVE-2016-6313 is a medium-severity vulnerability in Gnupg, classified under Information Disclosure. CVSS score: 5.3/10. Published 2016-12-13.
- How severe is CVE-2016-6313?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2016-6313 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.