The following advisory data is extracted from:

https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_2156.json

Red Hat officially shut down their mailing list notifications October 10, 2023.  Due to this, Packet Storm has recreated the below data as a reference point to raise awareness.  It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.

- Packet Storm Staff




====================================================================
Red Hat Security Advisory

Synopsis:           Moderate: frr security update
Advisory ID:        RHSA-2024:2156-03
Product:            Red Hat Enterprise Linux
Advisory URL:       https://access.redhat.com/errata/RHSA-2024:2156
Issue date:         2024-04-30
Revision:           03
CVE Names:          CVE-2023-31489
====================================================================

Summary: 

An update for frr is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.




Description:

FRRouting is free software that manages TCP/IP based routing protocols. It supports BGP4, OSPFv2, OSPFv3, ISIS, RIP, RIPng, PIM, NHRP, PBR, EIGRP and BFD. 

Security Fix(es):

* frr: incorrect length check in bgp_capability_llgr() can lead do DoS (CVE-2023-31489)

* frr: missing length check in bgp_attr_psid_sub() can lead do DoS (CVE-2023-31490)

* frr: processes invalid NLRIs if attribute length is zero (CVE-2023-41358)

* frr: out of bounds read in bgp_attr_aigp_valid (CVE-2023-41359)

* frr: NULL pointer dereference in bgp_nlri_parse_flowspec() in bgpd/bgp_flowspec.c (CVE-2023-41909)

* frr: mishandled malformed data leading to a crash (CVE-2023-46752)

* frr: crafted BGP UPDATE message leading to a crash (CVE-2023-46753)

* frr: ahead-of-stream read of ORF header (CVE-2023-41360)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.4 Release Notes linked from the References section.


Solution:

https://access.redhat.com/articles/11258



CVEs:

CVE-2023-31489

References:

https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.4_release_notes/index
https://bugzilla.redhat.com/show_bug.cgi?id=2235839
https://bugzilla.redhat.com/show_bug.cgi?id=2235840
https://bugzilla.redhat.com/show_bug.cgi?id=2235842
https://bugzilla.redhat.com/show_bug.cgi?id=2237416
https://bugzilla.redhat.com/show_bug.cgi?id=2238990
https://bugzilla.redhat.com/show_bug.cgi?id=2238992
https://bugzilla.redhat.com/show_bug.cgi?id=2246379
https://bugzilla.redhat.com/show_bug.cgi?id=2246381
https://issues.redhat.com/browse/RHEL-11664
https://issues.redhat.com/browse/RHEL-15291