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Fencer Vulns
medium 5.5

CVE-2023-30774 json

A vulnerability was found in the libtiff library

published 2023-05-19 3 y ago modified 2026-07-25 3 mo ago also EUVD-2023-35137 , JLSEC-2025-302

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

Summary

A vulnerability was found in the libtiff library. This flaw causes a heap buffer overflow issue via the TIFFTAG_INKNAMES and TIFFTAG_NUMBEROFINKS values.

Patch / fix

  • julia Libtiff_jll 4.5.1+0
  • apple macos 14.1
  • tiff Debian 14, Debian 13, Debian 12 4.4.0-5

debian advisories DEBIAN-CVE-2023-30774

  • tiff Ubuntu 18.04 LTS 4.0.9-5ubuntu0.8
  • tiff Ubuntu 20.04 LTS 4.1.0+git191117-2ubuntu0.20.04.6
  • tiff Ubuntu 22.04 LTS 4.3.0-6ubuntu0.2
  • tiff Ubuntu Pro 14.04 LTS 4.0.3-7ubuntu0.11+esm5
  • tiff Ubuntu Pro 16.04 LTS 4.0.6-1ubuntu0.8+esm7

ubuntu advisories UBUNTU-CVE-2023-30774

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libtiff RHEL 9 4.4.0-7.el9
  • libtiff-tools RHEL 9 4.4.0-7.el9

red hat advisories RHSA-2023:2340

  • libtiff AlmaLinux 9 4.4.0-7.el9
  • libtiff-tools AlmaLinux 9 4.4.0-7.el9

almalinux advisories ALSA-2023:2340

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-30774 updated cvss 6.2

libtiff: heap buffer overflow issues related to TIFFTAG_INKNAMES and related TIFFTAG_NUMBEROFINKS value

  • Red Hat Enterprise Linux 6 libtiff Red Hat Enterprise Linux 7 libtiff, libtiff-tools, compat-libtiff3
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 libtiff, libtiff-tools, compat-libtiff3
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux AppStream (v. 9) libtiff 4.4.0-7.el9 Red Hat Enterprise Linux CRB (v. 9) libtiff-tools 4.4.0-7.el9
    fixed: vendor fix RHSA-2023:2340

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gitlab.com https://gitlab.com/libtiff/libtiff/-/issues/463 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
OSV 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
julia Libtiff_jll
<4.5.1+0
4.5.1+0

Affected products

  • n/a libtiff

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-787 Out-of-bounds Write

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.