Bug 2106334 (CVE-2021-41687) - CVE-2021-41687 dcmtk: a memory leak allows a DoS
Summary: CVE-2021-41687 dcmtk: a memory leak allows a DoS
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-41687
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: 2106335 2106336
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-07-12 11:46 UTC by Marian Rehak
Modified: 2022-08-29 22:55 UTC (History)
3 users (show)

Fixed In Version:
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Last Closed: 2022-08-29 22:55:52 UTC
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Description Marian Rehak 2022-07-12 11:46:12 UTC 
The program malloc a heap memory for parsing data, but does not free it when error in parsing. Sending specific requests to the dcmqrdb program incur the memory leak. An attacker can use it to launch a DoS attack.

Reference:

https://github.com/DCMTK/dcmtk/commit/a9697dfeb672b0b9412c00c7d36d801e27ec85cb
Comment 1 Marian Rehak 2022-07-12 11:46:29 UTC 
Created dcmtk tracking bugs for this issue:

Affects: epel-all [bug 2106336]
Affects: fedora-all [bug 2106335]
Comment 2 Product Security DevOps Team 2022-08-29 22:55:51 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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