Bug 1890967 (CVE-2020-27638) - CVE-2020-27638 fastd: DoS'able memory leak on invalid packets
Summary: CVE-2020-27638 fastd: DoS'able memory leak on invalid packets
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2020-27638
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: 1890968 1890969 1890970
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-10-23 12:15 UTC by Michael Kaplan
Modified: 2020-10-23 14:21 UTC (History)
1 user (show)

Fixed In Version:
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Last Closed: 2020-10-23 14:21:24 UTC
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Description Michael Kaplan 2020-10-23 12:15:41 UTC 
receive.c in fastd before v21 allows denial of service (assertion failure) when receiving packets with an invalid type code.

References:

https://bugs.debian.org/972521
https://fastd.readthedocs.io/en/stable/releases/v21.html
https://github.com/NeoRaider/fastd/commit/737925113363b6130879729cdff9ccc46c33eaea
Comment 1 Michael Kaplan 2020-10-23 12:16:08 UTC 
Created fastd tracking bugs for this issue:

Affects: epel-7 [bug 1890969]
Affects: epel-8 [bug 1890970]
Affects: fedora-all [bug 1890968]
Comment 2 Product Security DevOps Team 2020-10-23 14:21:24 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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