CVE-2020-12406: canonical ubuntu_linux
CVSS: 9.3v2.0HighModified
AliasesUBUNTU-CVE-2020-12406DEBIAN-CVE-2020-12406
Published 09-07-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-12406 is a high (CVSS 9.3) vulnerability in canonical ubuntu_linux. EPSS estimates a 1.02% chance of exploitation in the next 30 days, higher than 62.8% of scored vulnerabilities.
CVSS score
9.3/10
010
High · v2.0 (NVD)EPSS score
1.02%
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 12DLA-2243-1DLA-2247-1DSA-4695-1DSA-4702-1MGASA-2020-0300OPENSUSE-SU-2020:0789-1OPENSUSE-SU-2020:0799-1OPENSUSE-SU-2024:10600-1OPENSUSE-SU-2024:10601-1OPENSUSE-SU-2024:14572-1RHSA-2020:2378RHSA-2020:2379RHSA-2020:2380RHSA-2020:2381RHSA-2020:2382RHSA-2020:2611RHSA-2020:2613RHSA-2020:2614RHSA-2020:2615RHSA-2020:2616SUSE-SU-2020:14389-1SUSE-SU-2020:1556-1SUSE-SU-2020:1563-1SUSE-SU-2020:1591-1SUSE-SU-2020:1591-2USN-4383-1USN-4421-1
Timeline
- 09-07-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Mozilla Developer Iain Ireland discovered a missing type check during unboxed objects removal, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.
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
1.02%
Chance of exploitation in the next 30 days
Percentile
63%
Versus all other CVEs
30-day change
0.00 pp
From 1.02% on 19-09-2026
19-09-202619-10-2026
EPSS score1.02%
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< 77.0.1+build1-0ubuntu0.16.04.1 | < 77.0.1+build1-0ubuntu0.18.04.1 | < 77.0.1+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, < 77 | < 77.0
- firefox_esr≥ unspecified, < 68.9 | < 68.9.0
- thunderbird≥ unspecified, < 68.9.0 | < 68.9.0
Debian2 products
- firefox-esr< 68.9.0esr-1
- thunderbird< 1:68.9.0-1
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 19.10 | 20.04
4 vendors · 11 products
