CVE-2021-30851

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 15, tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing maliciously crafted web content may lead to code execution.

References

https://support.apple.com/en-us/HT212814

https://support.apple.com/en-us/HT212815

https://support.apple.com/en-us/HT212816

https://support.apple.com/en-us/HT212819

https://lists.fedoraproject.org/archives/list/[email protected]/message/ON5SDVVPVPCAGFPW2GHYATZVZYLPW2L4/

http://www.openwall.com/lists/oss-security/2021/10/31/1

https://www.debian.org/security/2021/dsa-4996

https://www.debian.org/security/2021/dsa-4995

https://lists.fedoraproject.org/archives/list/[email protected]/message/H6MGXCX7P5AHWOQ6IRT477UKT7IS4DAD/

https://support.apple.com/kb/HT212869

Details

Source: MITRE

Published: 2021-08-24

Updated: 2021-11-23

Type: CWE-787

Risk Information

CVSS v2

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH

Tenable Plugins

View all (8 total)

IDNameProductFamilySeverity
155827SUSE SLED15 / SLES15 Security Update : webkit2gtk3 (SUSE-SU-2021:3874-1)NessusSuSE Local Security Checks
high
155825openSUSE 15 Security Update : webkit2gtk3 (openSUSE-SU-2021:3874-1)NessusSuSE Local Security Checks
high
155811SUSE SLED12 / SLES12 Security Update : webkit2gtk3 (SUSE-SU-2021:3861-1)NessusSuSE Local Security Checks
high
155703SUSE SLES15 Security Update : webkit2gtk3 (SUSE-SU-2021:3769-1)NessusSuSE Local Security Checks
high
154778Ubuntu 20.04 LTS / 21.04 / 21.10 : WebKitGTK vulnerabilities (USN-5127-1)NessusUbuntu Local Security Checks
high
154734Debian DSA-4996-1 : wpewebkit - security updateNessusDebian Local Security Checks
high
154732Debian DSA-4995-1 : webkit2gtk - security updateNessusDebian Local Security Checks
high
153507Apple iOS < 15 Multiple Vulnerabilities (HT212814)NessusMobile Devices
high