CVE-2019-17011: canonical ubuntu_linux Race Condition
Vulnerability summary
CVE-2019-17011 is a high (CVSS 7.5) Race Condition vulnerability in canonical ubuntu_linux. EPSS estimates a 1.52% chance of exploitation in the next 30 days, higher than 74.2% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 27 · Related 13Timeline
- 08-01-2020PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Under certain conditions, when retrieving a document from a DocShell in the antitracking code, a race condition could cause a use-after-free condition and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.52%
Chance of exploitation in the next 30 days
Percentile
74%
Versus all other CVEs
30-day change
0.00 pp
From 1.52% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugzilla.mozilla.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Ubuntu4 products
- firefox< 71.0+build5-0ubuntu0.16.04.1 | < 71.0+build5-0ubuntu0.18.04.1 | < 71.0+build5-0ubuntu1
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- thunderbird< 1:68.7.0+build1-0ubuntu0.16.04.2 | < 1:68.4.1+build1-0ubuntu0.18.04.1 | < 1:68.3.0+build2-0ubuntu1
Mozilla3 products
- firefox< 71 | < 71.0
- firefox_esr< 68.3
- thunderbird< 68.3
Debian2 products
- firefox-esr< 68.3.0esr-1
- thunderbird< 1:68.3.0-1
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 19.10
Opensuse1 product
- leapEOL15.1
5 vendors · 11 products
References
22 links- lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
