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  • #390
Closed
Open
Created Dec 01, 2020 by Emily@emily🤖

user/xorg-server: multiple vulnerabilities

Bugzilla ID 390
Alias(es) CVE-2020-14360, CVE-2020-25712
Reporter Max Rees (sroracle)
Assignee Max Rees (sroracle)
Reported 2020-12-01 12:19:16 -0600
Modified 2020-12-01 12:19:16 -0600
Status CONFIRMED
Version 1.0-RC1
Hardware Adélie Linux / All
Importance --- / major
Package(s) user/xorg-server
URL https://www.openwall.com/lists/oss-security/2020/12/01/3

Description

These issues can lead to privileges elevations for authorized clients
on systems where the X server is running privileged.

  • CVE-2020-14360 / ZDI CAN 11572 XkbSetMap Out-Of-Bounds Access

Insufficient checks on the lengths of the XkbSetMap request can lead to
out of bounds memory accesses in the X server.
Fixed in >= 1.20.10 https://gitlab.freedesktop.org/xorg/xserver/-/commit/06d1a032ee491547f7037c3ff042065dc2aeaa99

  • CVE-2020-25712 / ZDI-CAN-11839 XkbSetDeviceInfo Heap-based Buffer Overflow

Insufficient checks on input of the XkbSetDeviceInfo request can lead
to a buffer overflow on the head in the X server.
Fixed in >= 1.20.10 https://gitlab.freedesktop.org/xorg/xserver/-/commit/7ccb3b0eabb4658daf0ecb2c78a53609ae2c263b

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