CVE-2022-31783: fedoraproject fedora Out-of-bounds Write
CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2022-31783DEBIAN-CVE-2022-31783
Published 27-05-2022Last modified 03-08-2024
Vulnerability summary
CVE-2022-31783 is a medium (CVSS 5.5) Out-of-bounds Write vulnerability in fedoraproject fedora. EPSS estimates a 1.13% chance of exploitation in the next 30 days, higher than 65.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
1.13%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 5 · Related 5Timeline
- 27-05-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Liblouis 3.21.0 has an out-of-bounds write in compileRule in compileTranslationTable.c, as demonstrated by lou_trace.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 5.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.13%
Chance of exploitation in the next 30 days
Percentile
66%
Versus all other CVEs
30-day change
+0.02 pp
From 1.11% on 19-09-2026
19-09-202619-10-2026
EPSS score1.13%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundLiblouis
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian1 product
- liblouis< 3.22.0-1
Fedoraproject1 product
- fedoraEOL36
Liblouis1 product
- liblouis3.21.0
Ubuntu1 product
- liblouis< 3.5.0-1ubuntu0.4 | < 3.12.0-3ubuntu0.1 | < 3.20.0-2ubuntu0.1
4 vendors · 4 products
References
8 links- github.com/liblouis/liblouis/commit/ff747ec5e1ac54d54194846f6fe5bfc689192a85REPORTPatchThird Party Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
