CVE-2018-18557 Information

Description

LibTIFF 3.9.3 3.9.4 4.0.0alpha4 4.0.0alpha5 4.0.0alpha6 4.0.0beta7 4.0.0 4.0.1 4.0.2 4.0.3 4.0.4 4.0.4beta 4.0.5 4.0.6 4.0.7 4.0.8 and 4.0.9 (with JBIG enabled) decodes arbitrarily-sized JBIG into a buffer ignoring the buffer size which leads to a tif_jbig.c JBIGDecode out-of-bounds write.

CVSS Vector

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

Reference

https://access.redhat.com/errata/RHSA-2019:2053 https://github.com/Hack-Me/Pocs_for_Multi_Versions/tree/main/CVE-2018-18557 https://gitlab.com/libtiff/libtiff/commit/681748ec2f5ce88da5f9fa6831e1653e46af8a66 https://gitlab.com/libtiff/libtiff/merge_requests/38 https://lists.debian.org/debian-lts-announce/2018/10/msg00019.html https://security.gentoo.org/glsa/201904-15 https://usn.ubuntu.com/3864-1/ https://usn.ubuntu.com/3906-2/ https://www.debian.org/security/2018/dsa-4349 https://www.exploit-db.com/exploits/45694/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8