Bug 2106338 (CVE-2021-41689) - CVE-2021-41689 dcmtk: a head-based overflow may lead to DoS
Summary: CVE-2021-41689 dcmtk: a head-based overflow may lead to DoS
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-41689
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2106339 2106340
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-07-12 11:49 UTC by Marian Rehak
Modified: 2022-08-29 23:33 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2022-08-29 23:33:14 UTC
Embargoed:

Attachments (Terms of Use)

Description Marian Rehak 2022-07-12 11:49:15 UTC 
Sending specific requests to the dcmqrdb program, it would query its database and copy the result even if the result is null, which can incur a head-based overflow. An attacker can use it to launch a DoS attack.

Reference:

https://github.com/DCMTK/dcmtk/commit/5c14bf53fb42ceca12bbcc0016e8704b1580920d
Comment 1 Marian Rehak 2022-07-12 11:49:32 UTC 
Created dcmtk tracking bugs for this issue:

Affects: epel-all [bug 2106340]
Affects: fedora-all [bug 2106339]
Comment 2 Product Security DevOps Team 2022-08-29 23:33:12 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
Note You need to log in before you can comment on or make changes to this bug.