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Fencer Vulns
medium 6.5

CVE-2022-2521 json

It was found in libtiff 4.4.0rc1 that there is an invalid pointer free operation in TIFFClose() at tif_close.c:131 called by tiffcrop.c:252…

published 2022-08-31 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-34778

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

It was found in libtiff 4.4.0rc1 that there is an invalid pointer free operation in TIFFClose() at tif_close.c:131 called by tiffcrop.c:2522 that can cause a program crash and denial of service while processing crafted input.

Patch / fix

  • tiff Debian 14, Debian 13, Debian 12 4.4.0-6

debian advisories DEBIAN-CVE-2022-2521

  • libtiff RHEL 8 4.0.9-26.el8_7
  • libtiff-tools RHEL 8 4.0.9-26.el8_7
  • libtiff RHEL 9 4.4.0-5.el9_1
  • libtiff-tools RHEL 9 4.4.0-5.el9_1

red hat advisories RHSA-2023:0095RHSA-2023:0302

  • tiff SLES for SAP 15 SP2, SLES for SAP 15 SP1, SLES for SAP 15 +26 more 4.0.9-150000.45.16.1
  • tiff SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +6 more 4.0.9-44.56.1

suse advisories SUSE-SU-2022:3690-1SUSE-SU-2022:3679-1

  • tiff openSUSE Tumbleweed 4.4.0-4.1

opensuse advisories openSUSE-SU-2024:12420-1

  • libtiff AlmaLinux 9 4.4.0-5.el9_1
  • libtiff-tools AlmaLinux 9 4.4.0-5.el9_1
  • libtiff AlmaLinux 8 4.0.9-26.el8_7
  • libtiff-tools AlmaLinux 8 4.0.9-26.el8_7

almalinux advisories ALSA-2023:0302ALSA-2023:0095

  • libtiff Rocky Linux 9 4.4.0-5.el9_1
  • libtiff Rocky Linux 8 4.0.9-26.el8_7

rocky linux advisories RLSA-2023:0302RLSA-2023:0095

  • tiff Alpine 3.16, Alpine 3.15 4.4.0-r3
  • tiff Alpine 3.24, Alpine 3.23, Alpine 3.22 +5 more 4.4.0-r1

alpine advisories ALPINE-CVE-2022-2521

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2022-2521 updated cvss 6.5

libtiff: Invalid pointer free operation in TIFFClose() at tif_close.c

  • 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 compat-libtiff3
    affected: no fix available “Fix deferred”
  • Red Hat CodeReady Linux Builder (v. 8) libtiff-tools 4.0.9-26.el8_7
    fixed: vendor fix RHSA-2023:0095
  • Red Hat CodeReady Linux Builder (v. 9) libtiff-tools 4.4.0-5.el9_1
    fixed: vendor fix RHSA-2023:0302
  • Red Hat Enterprise Linux AppStream (v. 8) libtiff 4.0.9-26.el8_7
    fixed: vendor fix RHSA-2023:0095
  • Red Hat Enterprise Linux AppStream (v. 9) libtiff 4.4.0-5.el9_1
    fixed: vendor fix RHSA-2023:0302

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

1.33% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gitlab.com https://gitlab.com/libtiff/libtiff/-/merge_requests/378 referenced PoC, tagged "exploit" by a source, unverified
  • gitlab.com https://gitlab.com/libtiff/libtiff/-/issues/422 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

  • n/a libtiff

Classification

Weakness
  • CWE-763 Release of Invalid Pointer or Reference

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.