5.5

CVE-2023-2731: fedoraproject fedora NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2023-2731DEBIAN-CVE-2023-2731
Published 17-05-2023Last modified 22-01-2025
Open JSON

Vulnerability summary

CVE-2023-2731 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in fedoraproject fedora. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 35.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.43%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 4 · Related 3
RHSA-2023:6575SUSE-SU-2023:4736-1SUSE-SU-2023:4869-1USN-6290-1

Timeline

  1. 17-05-2023
    PublishedVulnerability first disclosed.
  2. 22-01-2025
    Last modifiedVulnerability information updated.

Description

A NULL pointer dereference flaw was found in Libtiff's LZWDecode() function in the libtiff/tif_lzw.c file. This flaw allows a local attacker to craft specific input data that can cause the program to dereference a NULL pointer when decompressing a TIFF format file, resulting in a program crash or denial of service.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

0.00 pp

From 0.43% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.43%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (gitlab.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • tiff< 4.5.0-6
Fedoraproject1 product
Libtiff1 product
Redhat1 product
Ubuntu1 product
  • tiff< 4.3.0-6ubuntu0.10

5 vendors · 5 products

References

10 links