CVE-2021-30851

Reference Links

• https://webkitgtk.org/security/WSA-2021-0006.html
• https://bugs.webkit.org/show_bug.cgi?id=227988
• https://www.openwall.com/lists/oss-security/2021/10/27/4
• https://security-tracker.debian.org/tracker/CVE-2021-30851
• https://support.apple.com/en-us/HT212816 (Advisory)
• https://support.apple.com/en-us/HT212869 (Advisory)
• https://support.apple.com/en-us/HT212819 (Advisory)
• http://www.openwall.com/lists/oss-security/2021/10/31/1
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H6MGXCX7P5AHWOQ6IRT477UKT7IS4DAD/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ON5SDVVPVPCAGFPW2GHYATZVZYLPW2L4/
• https://support.apple.com/en-us/HT212814 (Advisory)
• https://support.apple.com/en-us/HT212815 (Advisory)
• https://support.apple.com/kb/HT212869
• https://www.debian.org/security/2021/dsa-4995
• https://www.debian.org/security/2021/dsa-4996
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ON5SDVVPVPCAGFPW2GHYATZVZYLPW2L4/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H6MGXCX7P5AHWOQ6IRT477UKT7IS4DAD/

Parent vulnerabilities

(Appears in the following advisories)

• HT212815
• HT212819
• HT212869
• HT212816
• HT212814

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2021-30837
• CVE-2021-30838
• CVE-2021-30866
• CVE-2021-30834
• CVE-2021-30928
• CVE-2021-30831
• CVE-2021-30840
• CVE-2021-30841
• CVE-2021-30842
• CVE-2021-30843
• CVE-2021-30852
• CVE-2021-30814
• CVE-2021-30835
• CVE-2021-30847
• CVE-2021-30857
• CVE-2013-0340
• CVE-2021-30855
• CVE-2021-30854
• CVE-2021-30850
• CVE-2021-30808
• CVE-2021-30897
• CVE-2021-30884
• CVE-2021-30818
• CVE-2021-30823
• CVE-2021-30836
• CVE-2021-30809
• CVE-2021-30846
• CVE-2021-30849
• CVE-2021-30851
• CVE-2021-30810
• CVE-2021-30811
• CVE-2021-30882
• CVE-2021-30925
• CVE-2021-30873
• CVE-2021-30876
• CVE-2021-30879
• CVE-2021-30877
• CVE-2021-30880
• CVE-2021-30994
• CVE-2021-30907
• CVE-2021-30899
• CVE-2021-30931
• CVE-2021-30917
• CVE-2021-30903
• CVE-2021-30905
• CVE-2021-30919
• CVE-2020-9846
• CVE-2021-30881
• CVE-2021-30923
• CVE-2021-30895
• CVE-2021-30896
• CVE-2021-30933
• CVE-2021-30906
• CVE-2021-30867
• CVE-2021-30922
• CVE-2021-30824
• CVE-2021-30901
• CVE-2021-30821
• CVE-2021-30883
• CVE-2021-30924
• CVE-2021-30886
• CVE-2021-30909
• CVE-2021-30916
• CVE-2021-30864
• CVE-2021-30813
• CVE-2021-31011
• CVE-2021-30904
• CVE-2021-30910
• CVE-2021-30911
• CVE-2021-30874
• CVE-2021-30920
• CVE-2021-31004
• CVE-2021-31002
• CVE-2021-30868
• CVE-2021-30912
• CVE-2021-30913
• CVE-2021-30915
• CVE-2021-31005
• CVE-2021-31008
• CVE-2021-30848
• CVE-2021-30887
• CVE-2021-30888
• CVE-2021-30889
• CVE-2021-30861
• CVE-2021-30890
• CVE-2021-30930
• CVE-2021-30908
• CVE-2021-30833
• CVE-2021-30892
• CVE-2021-30825
• CVE-2021-30863
• CVE-2021-30816
• CVE-2021-30819
• CVE-2021-30898
• CVE-2021-30870
• CVE-2021-30815
• CVE-2021-31001
• CVE-2021-30826

Frequently Asked Questions

• What is CVE-2021-30851?

  CVE-2021-30851 is a memory corruption vulnerability in WebKit that has been addressed with improved locking.

• Which software versions are affected by CVE-2021-30851?

  CVE-2021-30851 affects watchOS up to version 8, iOS up to version 15, iPadOS up to version 15, tvOS up to version 15, Safari up to version 15, and macOS Monterey up to version 12.0.1.

• How can I fix CVE-2021-30851?

  To fix CVE-2021-30851, update your operating system and Safari to the latest available version.

• Where can I find more information about CVE-2021-30851?

  You can find more information about CVE-2021-30851 on Apple's support website at the following links: [HT212814](https://support.apple.com/en-us/HT212814), [HT212819](https://support.apple.com/en-us/HT212819), and [HT212815](https://support.apple.com/en-us/HT212815).