CVE-2016-5384
HIGH
7.8
CVSS Score
Published: August 12, 2016 at 04:00 PM UTC
Updated: June 17, 2026 at 12:49 AM UTC
4 products affected across 4 vendorsDebian LinuxFedoraUbuntu Linux
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Severity
HIGH7.8
Exploit prediction
EPSS 0.4%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Ubuntu Linux· Canonicalrubygems
95%Debian Linux· Debiandrupal
95%v < 2.12.1
Affected range stops below 2.12.1, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://rhn.redhat.com/errata/RHSA-2016-2601.html
- http://www.debian.org/security/2016/dsa-3644
- http://www.ubuntu.com/usn/USN-3063-1
- https://cgit.freedesktop.org/fontconfig/commit/?id=7a4a5bd7897d216f0794ca9dbce0a4a5c9d14940
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6CJ45VRAMCIISHOVKFVOQYQUSTUJP7FC/
References (8)
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
http://rhn.redhat.com/errata/RHSA-2016-2601.htmlVendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
http://www.debian.org/security/2016/dsa-3644VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/92339Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
http://www.ubuntu.com/usn/USN-3063-1x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://cgit.freedesktop.org/fontconfig/commit/?id=7a4a5bd7897d216f0794ca9dbce0a4a5c9d14940Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6CJ45VRAMCIISHOVKFVOQYQUSTUJP7FC/Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GGOS4YYB7UYAWX5AEXJZHDIX4ZMSXSW5/Mailing Listx_refsource_MLISTPatchThird Party Advisory
Source: [email protected]
https://lists.freedesktop.org/archives/fontconfig/2016-August/005792.htmlCVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-415
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