CVE-2020-12419: canonical ubuntu_linux Use After Free
CVSS: 9.3v2.0HighModified
AliasesUBUNTU-CVE-2020-12419DEBIAN-CVE-2020-12419
Published 09-07-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-12419 is a high (CVSS 9.3) Use After Free vulnerability in canonical ubuntu_linux. EPSS estimates a 2.32% chance of exploitation in the next 30 days, higher than 83.2% of scored vulnerabilities.
CVSS score
9.3/10
010
High · v2.0 (NVD)EPSS score
2.32%
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 27 · Related 13DSA-4713-1DSA-4718-1MGASA-2020-0274MGASA-2020-0300OPENSUSE-SU-2020:0967-1OPENSUSE-SU-2020:0982-1OPENSUSE-SU-2020:0983-1OPENSUSE-SU-2020:1017-1OPENSUSE-SU-2024:10600-1OPENSUSE-SU-2024:10601-1OPENSUSE-SU-2024:14572-1RHSA-2020:2824RHSA-2020:2825RHSA-2020:2826RHSA-2020:2827RHSA-2020:2828RHSA-2020:2906RHSA-2020:2907RHSA-2020:2966RHSA-2020:3038RHSA-2020:3046SUSE-SU-2020:14421-1SUSE-SU-2020:1898-1SUSE-SU-2020:1899-1SUSE-SU-2020:1900-1USN-4408-1USN-4421-1
Timeline
- 09-07-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free condition. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 8.8Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
High 9.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
2.32%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
0.00 pp
From 2.32% on 19-09-2026
19-09-202619-10-2026
EPSS score2.32%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu5 products
- firefox< 78.0.1+build1-0ubuntu0.16.04.1 | < 78.0.1+build1-0ubuntu0.18.04.1 | < 78.0.1+build1-0ubuntu0.20.04.1
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- mozjs68All versions (No fix recorded)
- thunderbird< 1:68.10.0+build1-0ubuntu0.16.04.1 | < 1:68.10.0+build1-0ubuntu0.18.04.1 | < 1:68.10.0+build1-0ubuntu0.20.04.1
Mozilla3 products
- firefox≥ unspecified, < 78 | < 78.0
- firefox_esr≥ unspecified, < 68.10 | < 68.10
- thunderbird≥ unspecified, < 68.10.0 | < 68.10.0
Debian2 products
- firefox-esr< 68.10.0esr-1
- thunderbird< 1:68.10.0-1
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 19.10 | 20.04
Opensuse1 product
- leapEOL15.1 | 15.2
5 vendors · 12 products
References
18 links- lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
