CVE-2018-7731

MEDIUM

exempi < 2.4.4 - NULL Pointer Dereference in WEBP::VP8XChunk

Title source: llm

Description

An issue was discovered in Exempi through 2.4.4. XMPFiles/source/FormatSupport/WEBP_Support.cpp does not check whether a bitstream has a NULL value, leading to a NULL pointer dereference in the WEBP::VP8XChunk class.

References (4)

Core 4

Core References

Patch, Third Party Advisory x_refsource_misc

https://cgit.freedesktop.org/exempi/commit/?id=aabedb5e749dd59112a3fe1e8e08f2d934f56666

Third Party Advisory vendor-advisory x_refsource_ubuntu

https://usn.ubuntu.com/3668-1/

Exploit, Issue Tracking, Third Party Advisory x_refsource_misc

https://bugs.freedesktop.org/show_bug.cgi?id=105247

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BCFXKOOATZ2B5G3G7EBXZWVZHEABN4ZV/

Scores

CVSS v3 5.5

EPSS 0.0037

EPSS Percentile 58.8%

Attack Vector LOCAL

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

Details

CWE

CWE-476

Status published

Products (4)

canonical/ubuntu_linux 14.04

canonical/ubuntu_linux 16.04

canonical/ubuntu_linux 17.10

exempi_project/exempi < 2.4.4

Published Mar 06, 2018

Tracked Since Feb 18, 2026