CVE-2019-11746: mozilla firefox Use After Free
CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2019-11746DEBIAN-CVE-2019-11746
Published 27-09-2019Last modified 04-08-2024
Vulnerability summary
CVE-2019-11746 is a high (CVSS 8.8) Use After Free vulnerability in mozilla firefox. EPSS estimates a 1.71% chance of exploitation in the next 30 days, higher than 77% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
1.71%
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 28 · Related 15DLA-1910-1DLA-1926-1DSA-4516-1DSA-4523-1MGASA-2019-0267MGASA-2019-0268MGASA-2019-0285OPENSUSE-SU-2019:2248-1OPENSUSE-SU-2019:2249-1OPENSUSE-SU-2019:2251-1OPENSUSE-SU-2019:2260-1OPENSUSE-SU-2024:10600-1OPENSUSE-SU-2024:10601-1OPENSUSE-SU-2024:14572-1RHSA-2019:2663RHSA-2019:2694RHSA-2019:2729RHSA-2019:2773RHSA-2019:2774RHSA-2019:2807SUSE-SU-2019:14173-1SUSE-SU-2019:14246-1SUSE-SU-2019:2436-1SUSE-SU-2019:2515-1SUSE-SU-2019:2545-1SUSE-SU-2019:2620-1USN-4122-1USN-4150-1
Timeline
- 27-09-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A use-after-free vulnerability can occur while manipulating video elements if the body is freed while still in use. This results in a potentially exploitable crash. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.71%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
0.00 pp
From 1.71% on 18-09-2026
18-09-202618-10-2026
EPSS score1.71%
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
- firefox< 69.0+build2-0ubuntu0.16.04.4 | < 69.0+build2-0ubuntu0.18.04.1
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- thunderbird< 1:60.9.0+build1-0ubuntu0.16.04.2 | < 1:60.9.0+build1-0ubuntu0.18.04.1
Mozilla3 products
- firefox≥ unspecified, < 69 | < 60.9.0 | < 69.0
- firefox_esr≥ unspecified, < 60.9 | ≥ unspecified, < 68.1 | ≥ 68.0, < 68.1.0
- thunderbird≥ unspecified, < 68.1 | ≥ unspecified, < 60.9 | < 60.9.0 | ≥ 68.0, < 68.1.0
Debian2 products
- firefox-esr< 68.1.0esr-1
- thunderbird< 1:60.9.0-1
3 vendors · 9 products
References
19 links- bugzilla.mozilla.org/show_bug.cgi?id=1564449X Refsource MISCIssue TrackingPermissions RequiredVendor Advisory
