PT-2026-89997 · Red Hat · Red Hat Ceph Storage 4+10

CVE-2026-18495

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Published

2026-09-11

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Updated

2026-09-11

CVSS v3.1

6.1

Medium

VectorAV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:H
A flaw was found in libtiff. A heap-buffer overflow vulnerability exists in the tiff2pdf utility due to an integer truncation error when processing crafted BigTIFF files. An attacker can provide a specially crafted BigTIFF file, causing a 64-bit StripByteCounts value to be truncated to a 32-bit integer. This leads to an undersized memory allocation and a subsequent out-of-bounds memory copy, resulting in a crash and severe memory corruption.

Fix

Heap Based Buffer Overflow

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Weakness Enumeration

Related Identifiers

CVE-2026-18495
RHSA-2026:53467

Affected Products

Red Hat Ceph Storage 4
Red Hat Ceph Storage 6
Red Hat Ceph Storage 7
Red Hat Ceph Storage 8
Red Hat Ceph Storage 9
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat Hardened Images