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7.8 High

CVE-2026-4775 Libtiff: libtiff: arbitrary code execution or denial of service via signed integer overflow in tiff file processing

Description

A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function by providing a specially crafted TIFF file. This flaw can lead to an out-of-bounds heap write due to incorrect memory pointer calculations, potentially causing a denial of service (application crash) or arbitrary code execution.

CVSS 3.1 detail

Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitable with local access to the machine, without an account and if a user takes an action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector
Local
Attack complexity
Low
Privileges required
None
Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Affected products and versions

Product Affected versions Fixed in
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 6 Versions not published
Red Hat Enterprise Linux 7 Versions not published
Red Hat Enterprise Linux 8 Versions not published
Red Hat Enterprise Linux 9 Versions not published
Red Hat Hardened Images 4.7 earliest → < 4.7.1-2.3.hum1 4.7.1-2.3.hum1
Red Hat Enterprise Linux 10.0 Extended Update Support Versions not published
Red Hat Enterprise Linux 9.6 Extended Update Support Versions not published
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Versions not published
Show the 36 other branches
Product Affected versions Fixed in
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Versions not published
Red Hat Enterprise Linux 8.6 Telecommunications Update Service Versions not published
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Versions not published
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Versions not published
Red Hat Enterprise Linux 8.8 Telecommunications Update Service Versions not published
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.4 Extended Update Support Versions not published
Red Hat Enterprise Linux 7 Extended Lifecycle Support Versions not published
Red Hat AI Inference Server 3.2 1780681984 earliest → < 1780681984 1780681984
Red Hat AI Inference Server 3.3 1782352847 earliest → < 1782352847 1782352847
Red Hat Enterprise Linux Server (v. 7 ELS) Versions not published
Red Hat Enterprise Linux Server Optional (v. 7 ELS) Versions not published
Red Hat Enterprise Linux AppStream EUS (v. 10.0) Versions not published
Red Hat Enterprise Linux AppStream (v. 10) Versions not published
Red Hat Enterprise Linux AppStream (v. 8) Versions not published
Red Hat Enterprise Linux AppStream AUS (v.8.4) Versions not published
Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) Versions not published
Red Hat Enterprise Linux AppStream AUS (v.8.6) Versions not published
Red Hat Enterprise Linux AppStream E4S (v.8.6) Versions not published
Red Hat Enterprise Linux AppStream TUS (v.8.6) Versions not published
Red Hat Enterprise Linux AppStream E4S (v.8.8) Versions not published
Red Hat Enterprise Linux AppStream TUS (v.8.8) Versions not published
Red Hat Enterprise Linux AppStream E4S (v.9.0) Versions not published
Red Hat Enterprise Linux AppStream E4S (v.9.2) Versions not published
Red Hat Enterprise Linux AppStream EUS (v.9.4) Versions not published
Red Hat Enterprise Linux AppStream EUS (v.9.6) Versions not published
Red Hat Enterprise Linux AppStream (v. 9) Versions not published
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) Versions not published
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) Versions not published
Red Hat Enterprise Linux CRB (v. 8) Versions not published
Red Hat CodeReady Linux Builder EUS (v.9.4) Versions not published
Red Hat CodeReady Linux Builder EUS (v.9.6) Versions not published
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) Versions not published
Red Hat OpenShift AI 3.4 1790703542 earliest → < 1790703542 1790703542

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Red Hat Enterprise Linux 10

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CVE-2026-123151 Gdb: gdb: stack buffer overflow in parse_tsv_definition via stale rs->buf tail Not rated CVE-2026-121997 Gdb: gdbserver: heap buffer overflow in cmd_qtdpsrc via qtdpsrc declared/actual length mismatch 8.1 High CVE-2026-121996 Gdb: gdbserver: heap disclosure and wild pointer in gdb_parse_agent_expr via untrusted agent-expression length 8.2 High CVE-2026-121995 Gdb: gdb: stack buffer overflow in parse_tracepoint_definition via stale rs->buf tail 7.5 High
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