Bug 2237416 (CVE-2023-41909) - CVE-2023-41909 frr: NULL pointer dereference in bgp_nlri_parse_flowspec() in bgpd/bgp_flowspec.c
Summary: CVE-2023-41909 frr: NULL pointer dereference in bgp_nlri_parse_flowspec() in ...
Keywords:
Status: NEW
Alias: CVE-2023-41909
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2238409
Blocks: 2237417
TreeView+ depends on / blocked
 
Reported: 2023-09-05 12:09 UTC by Avinash Hanwate
Modified: 2024-04-30 09:42 UTC (History)
0 users

Fixed In Version: frr 9.0
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in frr. Processing a malformed request with no attributes may cause a NULL pointer dereference, resulting in a denial of service.
Clone Of:
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Last Closed:
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2024:2156 0 None None None 2024-04-30 09:42:04 UTC

Description Avinash Hanwate 2023-09-05 12:09:13 UTC 
An issue was discovered in FRRouting FRR through 9.0. bgp_nlri_parse_flowspec in bgpd/bgp_flowspec.c processes malformed requests with no attributes, leading to a NULL pointer dereference.

Reference and upstream patch:
https://github.com/FRRouting/frr/pull/13222/commits/cfd04dcb3e689754a72507d086ba3b9709fc5ed8
Comment 2 Guilherme de Almeida Suckevicz 2023-09-11 17:43:09 UTC 
Created frr tracking bugs for this issue:

Affects: fedora-all [bug 2238409]
Comment 3 errata-xmlrpc 2024-04-30 09:42:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:2156 https://access.redhat.com/errata/RHSA-2024:2156
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