Bug 1952964 (CVE-2021-22207) - CVE-2021-22207 wireshark: MS-WSP dissector excessive memory consumption
Summary: CVE-2021-22207 wireshark: MS-WSP dissector excessive memory consumption
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-22207
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1952965 1955528 1955529
Blocks: 1952966
TreeView+ depends on / blocked
 
Reported: 2021-04-23 16:27 UTC by Guilherme de Almeida Suckevicz
Modified: 2022-04-17 21:19 UTC (History)
9 users (show)

Fixed In Version: wireshark 3.4.5, wireshark 3.2.13
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in wireshark. A memory leak in the MS-WSP dissector allows an attacker to crash an application which uses wireshark due to excessive memory allocation. The attacker can trigger the flaw by injecting special packets onto the wire or by convincing a victim user into opening a malformed packet trace file. The highest threat from this vulnerability is to application availability.
Clone Of:
Environment:
Last Closed: 2021-06-29 21:00:56 UTC
Embargoed:

Attachments (Terms of Use)

Description Guilherme de Almeida Suckevicz 2021-04-23 16:27:50 UTC 
It may be possible to make Wireshark consume excessive CPU resources by injecting a malformed packet onto the wire or by convincing someone to read a malformed packet trace file.

Reference:
https://www.wireshark.org/security/wnpa-sec-2021-04
Comment 1 Guilherme de Almeida Suckevicz 2021-04-23 16:28:09 UTC 
Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1952965]
Comment 2 Riccardo Schirone 2021-04-30 10:03:02 UTC 
Upstream patch:
https://gitlab.com/wireshark/wireshark/-/commit/b7a0650e061b5418ab4a8f72c6e4b00317aff623
Comment 3 Riccardo Schirone 2021-04-30 10:03:07 UTC 
External References:

https://www.wireshark.org/security/wnpa-sec-2021-04
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