Bug 2153683 (CVE-2022-42856) - CVE-2022-42856 webkitgtk: processing maliciously crafted web content may lead to an arbitrary code execution
Summary: CVE-2022-42856 webkitgtk: processing maliciously crafted web content may lead...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2022-42856
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2153684 2153685 2153692 2153693 2153729 2153730 2153731 2153732 2153733 2153734 2153735 2153736 2153737 2153738 2153739 2155010
Blocks: 2153686
TreeView+ depends on / blocked
 
Reported: 2022-12-15 08:06 UTC by Marian Rehak
Modified: 2023-04-27 21:00 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was found in webkitgtk, where a type confusion issue was addressed with improved memory handling. By this security flaw processing maliciously crafted web content may lead to arbitrary code execution.
Clone Of:
Environment:
Last Closed: 2023-01-05 23:00:39 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2023:0016 0 None None None 2023-01-04 08:44:49 UTC
Red Hat Product Errata RHSA-2023:0021 0 None None None 2023-01-04 11:01:16 UTC
WebKit Project 248266 0 None None None 2022-12-21 17:34:57 UTC

Description Marian Rehak 2022-12-15 08:06:35 UTC 
Processing maliciously crafted web content may lead to arbitrary code execution, due to a type confusion.

Reference:

https://support.apple.com/en-us/HT213531
Comment 1 Marian Rehak 2022-12-15 08:06:58 UTC 
Created webkit2gtk3 tracking bugs for this issue:

Affects: fedora-36 [bug 2153684]


Created webkitgtk tracking bugs for this issue:

Affects: fedora-37 [bug 2153685]
Comment 4 Marian Rehak 2022-12-15 10:27:40 UTC 
Upstream bz (private as of now):

https://bugs.webkit.org/show_bug.cgi?id=248266
Comment 10 Michael Catanzaro 2022-12-20 01:40:45 UTC 
Fixed by: https://github.com/WebKit/WebKit/commit/98940f219ba0e3eb6d958af483b73dd9cc75c28c
Comment 12 Michael Catanzaro 2022-12-20 04:47:51 UTC 
Mitigation: the environment variable JSC_useFTLJIT=0 will disable the vulnerable code. (This will also somewhat slow down JavaScript execution.)
Comment 15 errata-xmlrpc 2023-01-04 08:44:48 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:0016 https://access.redhat.com/errata/RHSA-2023:0016
Comment 16 errata-xmlrpc 2023-01-04 11:01:15 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:0021 https://access.redhat.com/errata/RHSA-2023:0021
Comment 17 Product Security DevOps Team 2023-01-05 23:00:37 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2022-42856
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