CVE-2020-12418: canonical ubuntu_linux Out-of-bounds Read
CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2020-12418DEBIAN-CVE-2020-12418
Published 09-07-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-12418 is a medium (CVSS 6.5) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 3.03% chance of exploitation in the next 30 days, higher than 87.3% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
3.03%
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
Manipulating individual parts of a URL object could have caused an out-of-bounds read, leaking process memory to malicious JavaScript. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
3.03%
Chance of exploitation in the next 30 days
Percentile
87%
Versus all other CVEs
30-day change
0.00 pp
From 3.03% on 19-09-2026
19-09-202619-10-2026
EPSS score3.03%
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- bugzilla.mozilla.org/show_bug.cgi?id=1641303X Refsource MISCIssue TrackingPermissions RequiredVendor Advisory
- 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
