Double Free in Fontconfig_project Fontconfig
CVE-2016-5384
fontconfig before 2.12.1 does not validate offsets, which allows local users to trigger arbitrary free calls and consequently conduct double free attacks and execute arbitrary code via a crafted cache file.
Vulnerability class: Double Free
EPSS: 0.003 (50.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Fontconfig_project Fontconfig
- Canonical Ubuntu_linux — versions 12.04, 14.04, 16.04
- Debian Debian_linux — versions 8.0
- Fedoraproject Fedora — versions 23, 24
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- FEDORA-2016-e23ab56ce3 (x_refsource_FEDORA, vendor-advisory)
- USN-3063-1 (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- [Fontconfig] 20160805 fontconfig: Branch 'master' - 3 commits (mailing-list, x_refsource_MLIST, Patch, Mailing List, Third Party Advisory)
- RHSA-2016:2601 (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Patch, Third Party Advisory)
- 92339 (Third Party Advisory, VDB Entry, vdb-entry, x_refsource_BID)
- DSA-3644 (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- FEDORA-2016-6802f2e52a (x_refsource_FEDORA, vendor-advisory)
Frequently asked questions
- What is CVE-2016-5384?
- CVE-2016-5384 is a high-severity vulnerability in Fontconfig_project Fontconfig, classified under Double Free. CVSS score: 7.8/10. Published 2016-08-13.
- How severe is CVE-2016-5384?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2016-5384 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.