CVE-2017-12176: Input Validation
First published: Fri Nov 03 2017(Updated: )
Missing extra length validation was found in ProcEstablishConnection function. Upstream patch: <a href="https://cgit.freedesktop.org/xorg/xserver/commit/?id=b747da5e25be944337a9cd1415506fc06b70aa81">https://cgit.freedesktop.org/xorg/xserver/commit/?id=b747da5e25be944337a9cd1415506fc06b70aa81</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/xorg-server | 2:1.20.4-1+deb10u4 2:1.20.4-1+deb10u9 2:1.20.11-1+deb11u6 2:21.1.7-3 2:21.1.8-1 | |
| redhat/xorg-x11-server | <1.19.5 | 1.19.5 |
| Debian | =8.0 | |
| Debian | =9.0 | |
| X.Org Xserver | <1.19.5 |
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Reference Links
- https://cgit.freedesktop.org/xorg/xserver/commit/?id=b747da5e25be944337a9cd1415506fc06b70aa81
- https://security-tracker.debian.org/tracker/CVE-2017-12176
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1509258
- https://bugzilla.redhat.com/show_bug.cgi?id=1509214
- https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html
- https://security.gentoo.org/glsa/201711-05
- https://www.debian.org/security/2017/dsa-4000
Frequently Asked Questions
What is the severity of CVE-2017-12176?
CVE-2017-12176 has a moderate severity level due to missing extra length validation in the ProcEstablishConnection function.
How do I fix CVE-2017-12176?
To fix CVE-2017-12176, update the xorg-server package to one of the patched versions provided by the vendor.
What versions of xorg-server are affected by CVE-2017-12176?
CVE-2017-12176 affects multiple xorg-server versions including those prior to 1.20.4-1+deb10u4 and 1.19.5.
Which operating systems are impacted by CVE-2017-12176?
CVE-2017-12176 impacts Debian and Red Hat Linux distributions where vulnerable versions of xorg-server are installed.
Is CVE-2017-12176 related to a specific function in xorg-server?
Yes, CVE-2017-12176 is specifically related to the ProcEstablishConnection function in the xorg-server code.
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