CVE-2020-10018: canonical ubuntu_linux Use After Free
CVSS: 9.8v3.1CriticalModified
AliasesMGASA-2020-0144UBUNTU-CVE-2020-10018USN-4310-1DEBIAN-CVE-2020-10018DSA-4641-1
Published 02-03-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-10018 is a critical (CVSS 9.8) Use After Free vulnerability in canonical ubuntu_linux. EPSS estimates a 4.99% chance of exploitation in the next 30 days, higher than 92.1% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
4.99%
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 8 · Related 6Timeline
- 02-03-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
WebKitGTK through 2.26.4 and WPE WebKit through 2.26.4 (which are the versions right before 2.28.0) contains a memory corruption issue (use-after-free) that may lead to arbitrary code execution. This issue has been fixed in 2.28.0 with improved memory handling.
CVSS metrics
4 scores · 3 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
4.99%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
0.00 pp
From 4.99% on 19-09-2026
19-09-202619-10-2026
EPSS score4.99%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu4 products
- qtwebkit-opensource-srcAll versions (No fix recorded)
- qtwebkit-sourceAll versions (No fix recorded)
- webkit2gtkAll versions (No fix recorded) | < 2.28.0-1ubuntu2 | < 2.28.0-0ubuntu0.18.04.3
- webkitgtkAll versions (No fix recorded)
Debian3 products
- webkit2gtk< 2.28.0-2 | < 2.26.4-1~deb10u2
- wpewebkit< 2.28.0-1
- debian_linuxEOL10.0
Canonical1 product
- ubuntu_linuxEOL18.04 | 19.10
Fedoraproject1 product
- fedoraEOL30 | 31
Mageia1 product
- webkit2< 2.28.0-1.mga7
Opensuse1 product
- leapEOL15.1
Webkitgtk1 product
- webkitgtk< 2.28.0
Wpewebkit1 product
- wpe_webkit< 2.28.0
8 vendors · 13 products
References
17 links
- lists.opensuse.org/opensuse-security-announce/2020-05/msg00008.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory