CVE-2017-5402: debian debian_linux Use After Free
CVSS: 9.8v3.0CriticalModified
AliasesUBUNTU-CVE-2017-5402DEBIAN-CVE-2017-5402
Published 11-06-2018Last modified 05-08-2024
Vulnerability summary
CVE-2017-5402 is a critical (CVSS 9.8) Use After Free vulnerability in debian debian_linux. EPSS estimates a 2.84% chance of exploitation in the next 30 days, higher than 86.4% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.0 (NVD)EPSS score
2.84%
0%100%
Low · -0.06 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 20 · Related 10DLA-852-1DLA-896-1DSA-3805-1DSA-3832-1MGASA-2017-0081MGASA-2017-0082MGASA-2018-0018OPENSUSE-SU-2017:0687-1OPENSUSE-SU-2017:0688-1OPENSUSE-SU-2017:1268-1OPENSUSE-SU-2024:10600-1OPENSUSE-SU-2024:10601-1OPENSUSE-SU-2024:14572-1RHSA-2017:0459RHSA-2017:0461RHSA-2017:0498SUSE-SU-2017:0714-1SUSE-SU-2017:0732-1USN-3216-1USN-3233-1
Timeline
- 11-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.
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
2.84%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
-0.06 pp
From 2.90% on 20-09-2026
20-09-202620-10-2026
EPSS score2.84%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat6 products
- enterprise_linuxEOL5.0 | 6.0 | 7.0
- enterprise_linux_desktop5.0 | 6.0 | 7.0
- enterprise_linux_server5.0 | 6.0 | 7.0
- enterprise_linux_server_aus7.3 | 7.4
- enterprise_linux_server_eus7.3 | 7.4 | 7.5
Mozilla3 products
- firefox≥ unspecified, < 52 | < 52.0 | < 45.8.0
- firefox_esr≥ unspecified, < 45.8
- thunderbird≥ unspecified, < 52 | ≥ unspecified, < 45.8 | < 45.8.0
Debian2 products
- firefox-esr< 45.8.0esr-1
- debian_linuxEOL9.0
Ubuntu2 products
- firefox< 52.0+build2-0ubuntu0.14.04.1 | < 52.0+build2-0ubuntu0.16.04.1
- thunderbird< 1:45.8.0+build1-0ubuntu0.14.04.1 | < 1:45.8.0+build1-0ubuntu0.16.04.1
4 vendors · 13 products
