Bug 2106312 (CVE-2021-41688) - CVE-2021-41688 dcmtk: a double free allows for a DoS
Summary: CVE-2021-41688 dcmtk: a double free allows for a DoS
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-41688
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: 2106314 2106315
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-07-12 10:57 UTC by Marian Rehak
Modified: 2022-08-29 21:56 UTC (History)
3 users (show)

Fixed In Version:
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Last Closed: 2022-08-29 21:56:00 UTC
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Description Marian Rehak 2022-07-12 10:57:48 UTC 
The object in the program is free but its address is still used in other locations. Sending specific requests to the dcmqrdb program will incur a double free. 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 11:00:25 UTC 
Created dcmtk tracking bugs for this issue:

Affects: epel-all [bug 2106315]
Affects: fedora-all [bug 2106314]
Comment 2 Product Security DevOps Team 2022-08-29 21:55:58 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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