CVE-2017-12187: Input Validation
Missing length validation was found in RENDER extension.
Upstream patch:
https://cgit.freedesktop.org/xorg/xserver/commit/?id=cad5a1050b7184d828aef9c1dd151c3ab649d37e
Other sources
xorg-x11-server before 1.19.5 was missing length validation in RENDER extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/xorg-serverto a version that resolves this vulnerability.Fixed in 2:1.20.4-1+deb10u4Fixed in 2:1.20.4-1+deb10u9Fixed in 2:1.20.11-1+deb11u6Fixed in 2:21.1.7-3Fixed in 2:21.1.8-1 - Upgrade
Upgrade
redhat/xorg-x11-serverto a version that resolves this vulnerability.Fixed in 1.19.5 - Upgrade
Upgrade
alpine/xorg-serverto a version that resolves this vulnerability.Fixed in 1.19.5-r0 - Upgrade
Upgrade
xorg-x11-serverto a version that resolves this vulnerability.Fixed in 1.19.5
Event History
Frequently Asked Questions
What is the severity of CVE-2017-12187?
CVE-2017-12187 is considered a medium severity vulnerability due to its potential for triggering denial of service attacks.
How do I fix CVE-2017-12187?
To fix CVE-2017-12187, update your xorg-server to the latest patched version as specified by your operating system's package manager.
Which versions of xorg-server are affected by CVE-2017-12187?
CVE-2017-12187 affects xorg-server versions prior to 1.20.4 and version 1.19.5 on Red Hat systems.
Is CVE-2017-12187 exploitable remotely?
Yes, CVE-2017-12187 can be exploited remotely, putting systems at risk if not mitigated.
What impact does CVE-2017-12187 have on system performance?
Exploiting CVE-2017-12187 may cause denial of service, leading to degraded performance or crashes of the xorg-server.