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  • #9597

Closed
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Opened Oct 29, 2018 by Alicha CH@alichaReporter
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[3.9] xorg-server: Incorrect permission check in Xorg X server allows for privilege escalation (CVE-2018-14665)

A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check for -modulepath and -logfile options when
starting Xorg. X server allows unprivileged users with the ability to log in to the system via physical console to escalate their
privileges and run arbitrary code under root privileges.

Fixed In Version:

xorg-server 1.20.3

References:

https://nvd.nist.gov/vuln/detail/CVE-2018-14665
https://marc.info/?l=oss-security&m=154047832307726&w=2

Patch:

Introduced by: https://gitlab.freedesktop.org/xorg/xserver/commit/032b1d79b7d04d47814a5b3a9fdd162249fea74c (1.19.0)
Fixed by: https://gitlab.freedesktop.org/xorg/xserver/commit/50c0cf885a6e91c0ea71fb49fa8f1b7c86fe330e

(from redmine: issue id 9597, created on 2018-10-29, closed on 2018-10-30)

  • Relations:
    • copied_to #9596 (closed)
    • parent #9596 (closed)
To upload designs, you'll need to enable LFS and have admin enable hashed storage. More information
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Reference: alpine/aports#9597