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:
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Last Closed: 2022-08-29 23:33:14 UTC
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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.
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