CVE-2018-5159

CRITICAL

Skia - Buffer Overflow

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-5159. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates an integer overflow vulnerability in Skia's SkTDArray, leading to an out-of-bounds write when rendering dashed paths. The PoC triggers a crash via memory corruption in both a standalone Skia application and Mozilla Firefox.

Description

An integer overflow can occur in the Skia library due to 32-bit integer use in an array without integer overflow checks, resulting in possible out-of-bounds writes. This could lead to a potentially exploitable crash triggerable by web content. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · htmldosmultiple
https://www.exploit-db.com/exploits/44759

This exploit demonstrates an integer overflow vulnerability in Skia's SkTDArray, leading to an out-of-bounds write when rendering dashed paths. The PoC triggers a crash via memory corruption in both a standalone Skia application and Mozilla Firefox.

Classification
Working Poc 100%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: Skia (used in Chromium, Firefox), Mozilla Firefox
No auth needed
Prerequisites: Memory-intensive environment (16+ GB RAM recommended)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (19)

Core 19
Core References
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:1415
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201810-01
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:1726
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:1414
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201811-13
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-13/
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/44759/
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-11/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3660-1/
Issue Tracking, Permissions Required, Third Party Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1441941
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040896
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2018/dsa-4199
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3645-1/
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/05/msg00013.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/05/msg00007.html
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:1725
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2018/dsa-4209
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-12/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/104136

Scores

CVSS v3 9.8
EPSS 0.3756
EPSS Percentile 97.3%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-190 CWE-787
Status published
Products (20)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 17.10
canonical/ubuntu_linux 18.04
debian/debian_linux 7.0
debian/debian_linux 8.0
debian/debian_linux 9.0
mozilla/firefox < 52.8.0
mozilla/thunderbird < 52.8.0
mozilla/thunderbird_esr < 52.8.0
... and 10 more
Published Jun 11, 2018
Tracked Since Feb 18, 2026