CVE-2020-14347: canonical ubuntu_linux Improper Initialization
CVSS: 5.5v3.1MediumModified
AliasesALPINE-CVE-2020-14347MGASA-2020-0335UBUNTU-CVE-2020-14347DEBIAN-CVE-2020-14347
Published 05-08-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-14347 is a medium (CVSS 5.5) Improper Initialization vulnerability in canonical ubuntu_linux. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 31.4% of scored vulnerabilities.
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.39%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 16 · Related 12Timeline
- 05-08-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
6 scores · 5 sources · 2 versionsMedium 5.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NSourcesAll 5 agree
- OSV · AlpineEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Low 2.1Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
0.39%
Chance of exploitation in the next 30 days
Percentile
31%
Versus all other CVEs
30-day change
0.00 pp
From 0.39% on 19-09-2026
19-09-202619-10-2026
EPSS score0.39%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu3 products
- xorg-server< 2:1.15.1-0ubuntu2.11+esm2 | < 2:1.18.4-0ubuntu0.9 | < 2:1.19.6-1ubuntu4.5 | < 2:1.20.8-2ubuntu2.3
- xorg-server-hwe-16.04< 2:1.19.6-1ubuntu4.1~16.04.3
- xorg-server-hwe-18.04< 2:1.20.8-2ubuntu2.2~18.04.2
Debian2 products
- xorg-server< 2:1.20.9-1
- debian_linuxEOL9.0 | 10.0
Alpine1 product
- xorg-server< 1.20.5-r1 | < 1.20.6-r1 | < 1.20.8-r4
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 20.04
Mageia1 product
- x11-server< 1.20.8-1.1.mga7
The xorg project1 product
- xorg-x11-server1.20.9
X.org1 product
- x_server< 1.20.9
7 vendors · 10 products
References
18 links- lists.x.org/archives/xorg-announce/2020-July/003051.htmlX Refsource MISCWEBREPORTMailing ListPatchVendor Advisory
- www.openwall.com/lists/oss-security/2020/07/31/2X Refsource MISCREPORTMailing ListThird Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14347X Refsource CONFIRMIssue TrackingThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00066.htmlVendor AdvisoryX Refsource SUSEBroken Link
lists.debian.org/debian-lts-announce/2020/08/msg00057.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.opensuse.org/opensuse-security-announce/2020-08/msg00075.htmlVendor AdvisoryX Refsource SUSEBroken Link