CVE-2026-12912

Libtiff: libtiff: heap-based buffer overflow via crafted pixarlog-compressed tiff image

State: Published
Severity: 7.3 High
Published: Jun 29, 2026
Updated: Oct 15, 2026
Reserved: Jun 22, 2026

Description

A flaw was found in libtiff. A remote attacker could exploit this vulnerability by providing a specially crafted PixarLog-compressed TIFF image. This issue occurs when decoding Pixarlog codec images with the PIXARLOGDATAFMT_8BITABGR output format and a specific stride value, leading to a heap-based buffer overflow. This could potentially result in arbitrary code execution or a denial of service (DoS).

Scores

CVSS	Score	Vector	Source
3.1	7.3 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H	redhat
3.1	7.3 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H	redhat-SADP

Weaknesses

CWE-122 Heap-based Buffer Overflow

Affected Products

Product	Versions
Red Hat Enterprise Linux 10Red Hat	0:4.6.0-8.el10_2.4 and laterNot affected
Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat	0:4.6.0-6.el10_0.4 and laterNot affected
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat	0:3.9.4-12.el7_9.3 and laterNot affected
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat	0:4.0.3-35.el7_9.3 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	0:3.9.4-16.el8_10 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	0:4.0.9-38.el8_10 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat	0:3.9.4-13.el8_4.3 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat	0:4.0.9-18.el8_4.3 and laterNot affected
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat	0:3.9.4-13.el8_4.3 and laterNot affected
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat	0:4.0.9-18.el8_4.3 and laterNot affected
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat	0:3.9.4-13.el8_6.3 and laterNot affected
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat	0:4.0.9-21.el8_6.3 and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat	0:3.9.4-13.el8_6.3 and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat	0:4.0.9-21.el8_6.3 and laterNot affected
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat	0:3.9.4-13.el8_8.3 and laterNot affected
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat	0:4.0.9-29.el8_8.3 and laterNot affected
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat	0:3.9.4-13.el8_8.3 and laterNot affected
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat	0:4.0.9-29.el8_8.3 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:4.4.0-18.el9_8.1 and laterNot affected
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat	0:4.4.0-8.el9_2.6 and laterNot affected
Red Hat Enterprise Linux 9.4 Update Services for SAP SolutionsRed Hat	0:4.4.0-12.el9_4.6 and laterNot affected
Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat	0:4.4.0-13.el9_6.6 and laterNot affected
Red Hat Hardened ImagesRed Hat	4.7.1-2.4.hum1 and laterNot affected
Red Hat OpenShift AI 3.0Red Hat	1790276886 and laterNot affected
Red Hat OpenShift AI 3.0Red Hat	1790276884 and laterNot affected
Red Hat OpenShift AI 3.0Red Hat	1790277045 and laterNot affected
Red Hat OpenShift AI 3.0Red Hat	1790276889 and laterNot affected
Red Hat OpenShift AI 3.0Red Hat	1790276974 and laterNot affected
Red Hat OpenShift AI 3.2Red Hat	1790703497 and laterNot affected
Red Hat OpenShift AI 3.2Red Hat	1790703506 and laterNot affected
Red Hat OpenShift AI 3.2Red Hat	1790703590 and laterNot affected
Red Hat OpenShift AI 3.2Red Hat	1790703568 and laterNot affected
Red Hat OpenShift AI 3.2Red Hat	1790703586 and laterNot affected
Red Hat OpenShift AI 3.2Red Hat	1790703494 and laterNot affected
Red Hat OpenShift AI 3.4Red Hat	1790703542 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 8Red Hat
Red Hat Hardened ImagesRed Hat

References

RHSA-2026:34890vendor-advisory
RHSA-2026:41892vendor-advisory
RHSA-2026:42668vendor-advisory
RHSA-2026:47183vendor-advisory
RHSA-2026:47184vendor-advisory
RHSA-2026:49671vendor-advisory
RHSA-2026:50774vendor-advisory
RHSA-2026:54638vendor-advisory
RHSA-2026:54640vendor-advisory
RHSA-2026:54642vendor-advisory
RHSA-2026:58545vendor-advisory
RHSA-2026:58553vendor-advisory
RHSA-2026:58554vendor-advisory
RHSA-2026:58556vendor-advisory
RHSA-2026:61657vendor-advisory
RHSA-2026:69292vendor-advisory
RHSA-2026:73909vendor-advisory
RHSA-2026:73959vendor-advisory
RHSA-2026:73960vendor-advisory
RHSA-2026:73961vendor-advisory
RHSA-2026:73962vendor-advisory
RHSA-2026:74458vendor-advisory
RHSA-2026:74459vendor-advisory
RHSA-2026:74460vendor-advisory
RHSA-2026:74461vendor-advisory
RHSA-2026:74462vendor-advisory
RHSA-2026:74463vendor-advisory
RHSA-2026:74674vendor-advisory
RHSA-2026:83550vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-12912vdb-entry
RHBZ#2492871issue-tracking
https://gitlab.com/libtiff/libtiff/-/merge_requests/873
https://gitlab.com/libtiff/libtiff/-/work_items/824
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12912.json

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