Bug 2196090 (CVE-2022-40302) - CVE-2022-40302 frr: denial of service by crafting a BGP OPEN message with an option of type 0xff
Summary: CVE-2022-40302 frr: denial of service by crafting a BGP OPEN message with an ...
Keywords:
Status: NEW
Alias: CVE-2022-40302
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On: 2196094 2196795
Blocks: 2193421
TreeView+ depends on / blocked
 
Reported: 2023-05-08 04:12 UTC by Sandipan Roy
Modified: 2023-11-07 08:16 UTC (History)
2 users (show)

Fixed In Version:
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Doc Text:
A vulnerability was found in FRRouting. The issue occurs in bgpd in FRRouting (FRR). By crafting a BGP OPEN message with an option of type 0xff (Extended Length from RFC 9072), attackers may cause a denial of service (assertion failure and daemon restart or out-of-bounds read). This flaw is possible due to inconsistent boundary checks that do not account for reading 3 bytes (instead of 2) in this 0xff case.
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2023:6434 0 None None None 2023-11-07 08:16:40 UTC

Description Sandipan Roy 2023-05-08 04:12:08 UTC
An issue was discovered in bgpd in FRRouting (FRR) through 8.4. By crafting a BGP OPEN message with an option of type 0xff (Extended Length from RFC 9072), attackers may cause a denial of service (assertion failure and daemon restart, or out-of-bounds read). This is possible because of inconsistent boundary checks that do not account for reading 3 bytes (instead of 2) in this 0xff case.

https://github.com/FRRouting/frr/releases
https://github.com/advisories/GHSA-j7hm-p94x-q9pw

Comment 4 errata-xmlrpc 2023-11-07 08:16:39 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:6434 https://access.redhat.com/errata/RHSA-2023:6434


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