CVE-2017-7828: debian debian_linux Use After Free
CVSS: 9.8v3.0CriticalModified
AliasesUBUNTU-CVE-2017-7828DEBIAN-CVE-2017-7828
Published 11-06-2018Last modified 05-08-2024
Vulnerability summary
CVE-2017-7828 is a critical (CVSS 9.8) Use After Free vulnerability in debian debian_linux. EPSS estimates a 7.20% chance of exploitation in the next 30 days, higher than 94.2% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.0 (NVD)EPSS score
7.20%
0%100%
Low · -0.15 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 19 · Related 9Timeline
- 11-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
A use-after-free vulnerability can occur when flushing and resizing layout because the "PressShell" object has been freed while still in use. This results in a potentially exploitable crash during these operations. This vulnerability affects Firefox < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.
CVSS metrics
4 scores · 3 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
7.20%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
-0.15 pp
From 7.34% on 19-09-2026
19-09-202619-10-2026
EPSS score7.20%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat5 products
- enterprise_linux_desktop6.0 | 7.0
- enterprise_linux_server6.0 | 7.0
- enterprise_linux_server_aus7.4
- enterprise_linux_server_eus7.4 | 7.5
- enterprise_linux_workstation6.0 | 7.0
Debian3 products
- firefox-esr< 52.5.0esr-1
- thunderbird< 1:52.5.0-1
- debian_linuxEOL7.0 | 8.0 | 9.0
Mozilla3 products
- firefox≥ unspecified, < 57 | < 57.0 | < 52.5.0
- firefox_esr≥ unspecified, < 52.5
- thunderbird≥ unspecified, < 52.5 | < 52.5.0
Ubuntu2 products
- firefox< 57.0+build4-0ubuntu0.14.04.4 | < 57.0+build4-0ubuntu0.16.04.5 | < 57.0.1+build2-0ubuntu1
- thunderbird< 1:52.5.0+build1-0ubuntu0.14.04.1 | < 1:52.5.0+build1-0ubuntu0.16.04.1 | < 1:52.6.0+build1-0ubuntu1
4 vendors · 13 products
References
20 links
lists.debian.org/debian-lts-announce/2017/12/msg00001.htmlMailing ListX Refsource MLISTThird Party Advisory- bugzilla.mozilla.org/show_bug.cgi?id=1406750X Refsource CONFIRMIssue TrackingPermissions RequiredThird Party Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1412252X Refsource CONFIRMIssue TrackingPermissions RequiredThird Party Advisory
Show all 20 references
- lists.debian.org/debian-lts-announce/2017/11/msg00018.htmlMailing ListX Refsource MLISTThird Party Advisory