CVE-2016-5384: Double Free
First published: Fri Aug 12 2016(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fedora | =23 | |
| Fedora | =24 | |
| Fontconfig | <2.12.1 | |
| Debian | =8.0 | |
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 |
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Reference Links
- http://rhn.redhat.com/errata/RHSA-2016-2601.html
- http://www.debian.org/security/2016/dsa-3644
- http://www.securityfocus.com/bid/92339
- 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/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GGOS4YYB7UYAWX5AEXJZHDIX4ZMSXSW5/
- https://lists.freedesktop.org/archives/fontconfig/2016-August/005792.html
Frequently Asked Questions
What is the severity of CVE-2016-5384?
CVE-2016-5384 has a high severity rating as it can lead to arbitrary code execution due to double free vulnerabilities.
How do I fix CVE-2016-5384?
To fix CVE-2016-5384, update Fontconfig to version 2.12.1 or later.
Which operating systems are affected by CVE-2016-5384?
CVE-2016-5384 affects Fedora versions 23 and 24, Debian 8.0, and Ubuntu versions 12.04, 14.04, and 16.04.
What type of vulnerability is CVE-2016-5384?
CVE-2016-5384 is a memory corruption vulnerability that allows local users to execute arbitrary code.
Who can be affected by CVE-2016-5384?
Local users with access to create or modify Fontconfig cache files can be affected by CVE-2016-5384.
- agent/references
- agent/type
- agent/remedy
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/author
- agent/severity
- agent/event
- agent/description
- agent/first-publish-date
- agent/source
- agent/weakness
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/fedoraproject
- canonical/fedora
- version/fedora/23
- version/fedora/24
- vendor/fontconfig project
- canonical/fontconfig
- vendor/debian
- canonical/debian
- version/debian/8.0
- vendor/canonical
- canonical/ubuntu
- version/ubuntu/12.04
- version/ubuntu/14.04
- version/ubuntu/16.04