CVE-2016-7952: Input Validation
First published: Tue Dec 13 2016(Updated: )
X.org libXtst before 1.2.3 allows remote X servers to cause a denial of service (infinite loop) via a reply in the (1) XRecordStartOfData, (2) XRecordEndOfData, or (3) XRecordClientDied category without a client sequence and with attached data.
Credit: meissner@suse.de
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fedora | =24 | |
| Fedora | =25 | |
| libXtst | <=1.2.2 |
Remedy
https://cgit.freedesktop.org/xorg/lib/libXtst/commit/?id=9556ad67af3129ec4a7a4f4b54a0d59701beeae3
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Reference Links
- http://www.openwall.com/lists/oss-security/2016/10/04/2
- http://www.openwall.com/lists/oss-security/2016/10/04/4
- http://www.securityfocus.com/bid/93375
- http://www.securitytracker.com/id/1036945
- https://cgit.freedesktop.org/xorg/lib/libXtst/commit/?id=9556ad67af3129ec4a7a4f4b54a0d59701beeae3
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AFLHX7WNEUXXDAGR324T35L5P6RRR7GE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RVEUZRHYY3AJEKMFQ4DS7DX3Y2AICFP7/
- https://lists.x.org/archives/xorg-announce/2016-October/002720.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AFLHX7WNEUXXDAGR324T35L5P6RRR7GE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVEUZRHYY3AJEKMFQ4DS7DX3Y2AICFP7/
Frequently Asked Questions
What is the severity of CVE-2016-7952?
CVE-2016-7952 has a moderate severity level as it can lead to a denial of service due to an infinite loop.
How do I fix CVE-2016-7952?
To fix CVE-2016-7952, upgrade the X.org libXtst package to version 1.2.3 or later.
What systems are affected by CVE-2016-7952?
CVE-2016-7952 affects Fedora versions 24 and 25 as well as X.org libXtst versions prior to 1.2.3.
What types of attacks exploit CVE-2016-7952?
CVE-2016-7952 can be exploited by remote X servers to trigger a denial of service.
Is CVE-2016-7952 limited to local network attacks?
No, CVE-2016-7952 can potentially be exploited over a network, allowing remote attackers to cause service interruptions.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/remedy
- agent/author
- agent/last-modified-date
- agent/weakness
- agent/references
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/fedoraproject
- canonical/fedora
- version/fedora/24
- version/fedora/25
- vendor/x.org
- canonical/libxtst
- version/libxtst/1.2.2