Vulnerability · Published Aug 5, 2020 · Assigned by redhat
CVE-2020-14347
Medium 5.5
In plain English
A medium-severity security flaw in xorg-x11-server from The Xorg Project. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.4%top 66.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | libglvnd | 1:1.3.2-1.el8 | ALSA-2021:1804 |
| AlmaLinux:8 | libglvnd-core-devel | 1:1.3.2-1.el8 | ALSA-2021:1804 |
| AlmaLinux:8 | libglvnd-devel | 1:1.3.2-1.el8 | ALSA-2021:1804 |
| AlmaLinux:8 | libglvnd-egl | 1:1.3.2-1.el8 | ALSA-2021:1804 |
| AlmaLinux:8 | libglvnd-gles | 1:1.3.2-1.el8 | ALSA-2021:1804 |
| AlmaLinux:8 | libglvnd-glx | 1:1.3.2-1.el8 | ALSA-2021:1804 |
| AlmaLinux:8 | libglvnd-opengl | 1:1.3.2-1.el8 | ALSA-2021:1804 |
| AlmaLinux:8 | libinput-devel | 1.16.3-1.el8 | ALSA-2021:1804 |
| AlmaLinux:8 | libwacom-devel | 1.6-2.el8 | ALSA-2021:1804 |
| AlmaLinux:8 | mesa-libOSMesa-devel | 20.3.3-2.el8 | ALSA-2021:1804 |
| AlmaLinux:8 | mesa-libgbm-devel | 20.3.3-2.el8 | ALSA-2021:1804 |
| AlmaLinux:8 | xorg-x11-drivers | 7.7-30.el8 | ALSA-2021:1804 |
| AlmaLinux:8 | xorg-x11-server-devel | 1.20.10-1.el8 | ALSA-2021:1804 |
| AlmaLinux:8 | xorg-x11-server-source | 1.20.10-1.el8 | ALSA-2021:1804 |
| Alpine:v3.20 | xorg-server | 1.20.8-r4 | ALPINE-CVE-2020-14347 |
| Alpine:v3.21 | xorg-server | 1.20.8-r4 | ALPINE-CVE-2020-14347 |
| Alpine:v3.22 | xorg-server | 1.20.8-r4 | ALPINE-CVE-2020-14347 |
| Alpine:v3.23 | xorg-server | 1.20.8-r4 | ALPINE-CVE-2020-14347 |
| Alpine:v3.24 | xorg-server | 1.20.8-r4 | ALPINE-CVE-2020-14347 |
| Debian:12 | xorg-server | 2:1.20.9-1 | DEBIAN-CVE-2020-14347 |
| Debian:13 | xorg-server | 2:1.20.9-1 | DEBIAN-CVE-2020-14347 |
| Debian:14 | xorg-server | 2:1.20.9-1 | DEBIAN-CVE-2020-14347 |
| Rocky Linux:8 | egl-wayland | 0:1.1.5-3.el8 | RLSA-2021:1804 |
| Rocky Linux:8 | libX11 | 0:1.6.8-4.el8 | RLSA-2021:1804 |
| Rocky Linux:8 | libdrm | 0:2.4.103-1.el8 | RLSA-2021:1804 |
| Rocky Linux:8 | libglvnd | 1:1.3.2-1.el8 | RLSA-2021:1804 |
| Rocky Linux:8 | libinput | 0:1.16.3-1.el8 | RLSA-2021:1804 |
| Rocky Linux:8 | libwacom | 0:1.6-2.el8 | RLSA-2021:1804 |
| Rocky Linux:8 | mesa | 0:20.3.3-2.el8 | RLSA-2021:1804 |
| Rocky Linux:8 | xorg-x11-drivers | 0:7.7-30.el8 | RLSA-2021:1804 |
| Rocky Linux:8 | xorg-x11-server | 0:1.20.10-1.el8 | RLSA-2021:1804 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| The Xorg Project | xorg-x11-server | 1.20.9 |
Weakness: CWE-665 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References
- https://lists.x.org/archives/xorg-announce/2020-July/003051.html x_refsource_MISC
- https://www.openwall.com/lists/oss-security/2020/07/31/2 x_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14347 x_refsource_CONFIRM
- openSUSE-SU-2020:1279 vendor-advisory, x_refsource_SUSE
- [debian-lts-announce] 20200830 [SECURITY] [DLA 2359-1] xorg-server security update mailing-list, x_refsource_MLIST
- openSUSE-SU-2020:1302 vendor-advisory, x_refsource_SUSE
- DSA-4758 vendor-advisory, x_refsource_DEBIAN
- USN-4488-1 vendor-advisory, x_refsource_UBUNTU
- USN-4488-2 vendor-advisory, x_refsource_UBUNTU
- GLSA-202012-01 vendor-advisory, x_refsource_GENTOO