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FreeBSD : (lib)tiff -- Integer Overflow or Wraparound (766bb9b5-357f-11f1-98f0-00a098b42aeb)

high Nessus Plugin ID 306039

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 766bb9b5-357f-11f1-98f0-00a098b42aeb advisory.

 PrymEvol and Quang Luong reports:
 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.


Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://cveawg.mitre.org/api/cve/CVE-2026-4775

http://www.nessus.org/u?04f14c16

Plugin Details

Severity: High

ID: 306039

File Name: freebsd_pkg_766bb9b5357f11f198f000a098b42aeb.nasl

Version: 1.1

Type: Local

Published: 4/12/2026

Updated: 4/12/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-4775

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:tiff, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 4/11/2026

Vulnerability Publication Date: 3/24/2026

Reference Information

CVE: CVE-2026-4775