frr: CVSS (Max): 7.5

May 1, 2024

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AUSCERT External Security Bulletin Redistribution

ESB-2024.2739
frr security update
1 May 2024

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AusCERT Security Bulletin Summary
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Product: frr
Publisher: Red Hat
Operating System: Red Hat
Resolution: Patch/Upgrade
CVE Names: CVE-2023-41360 CVE-2023-41359 CVE-2023-41358
CVE-2023-31490 CVE-2023-31489 CVE-2023-41909
CVE-2023-46753 CVE-2023-46752

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

Comment: CVSS (Max): 7.5 CVE-2023-41909 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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Red Hat Security Advisory

Synopsis: Moderate: frr security update
Advisory ID: RHSA-2024:2156
Product: Red Hat Enterprise Linux AppStream (v. 9)
Advisory URL: https://access.redhat.com/errata/RHSA-2024:2156
Issue date: 2024-04-30
CVE Names: CVE-2023-31489 CVE-2023-31490 CVE-2023-41358 CVE-2023-41359
CVE-2023-41360 CVE-2023-41909 CVE-2023-46752 CVE-2023-46753
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1. 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream (v. 9) – aarch64, ppc64le, x86_64, s390x,
noarch

3. 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.

4. Solution:

For details on how to apply this update, which includes the changes described in
this advisory, refer to:

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

5. Bugs fixed (https://bugzilla.redhat.com/):

2238990 – CVE-2023-31489 – frr: incorrect length check in bgp_capability_llgr()
can lead do DoS
2238992 – CVE-2023-31490 – frr: missing length check in bgp_attr_psid_sub() can
lead do DoS
2235839 – CVE-2023-41358 – frr: processes invalid NLRIs if attribute length is
zero
2235840 – CVE-2023-41359 – frr: out of bounds read in bgp_attr_aigp_valid
2235842 – CVE-2023-41360 – frr: ahead-of-stream read of ORF header
2237416 – CVE-2023-41909 – frr: NULL pointer dereference in
bgp_nlri_parse_flowspec() in bgpd/bgp_flowspec.c
2246379 – CVE-2023-46752 – frr: mishandled malformed data leading to a crash
2246381 – CVE-2023-46753 – frr: crafted BGP UPDATE message leading to a crash

6. Package List:

Red Hat Enterprise Linux AppStream (v. 9)

aarch64:
frr-0:8.5.3-4.el9.aarch64.rpm
frr-debuginfo-0:8.5.3-4.el9.aarch64.rpm
frr-debugsource-0:8.5.3-4.el9.aarch64.rpm

ppc64le:
frr-0:8.5.3-4.el9.ppc64le.rpm
frr-debuginfo-0:8.5.3-4.el9.ppc64le.rpm
frr-debugsource-0:8.5.3-4.el9.ppc64le.rpm

s390x:
frr-0:8.5.3-4.el9.s390x.rpm
frr-debuginfo-0:8.5.3-4.el9.s390x.rpm
frr-debugsource-0:8.5.3-4.el9.s390x.rpm

Source:
frr-0:8.5.3-4.el9.src.rpm

x86_64:
frr-0:8.5.3-4.el9.x86_64.rpm
frr-debuginfo-0:8.5.3-4.el9.x86_64.rpm
frr-debugsource-0:8.5.3-4.el9.x86_64.rpm

noarch:
frr-selinux-0:8.5.3-4.el9.noarch.rpm

7. References:

https://access.redhat.com/security/cve/CVE-2023-31489
https://access.redhat.com/security/cve/CVE-2023-31490
https://access.redhat.com/security/cve/CVE-2023-41358
https://access.redhat.com/security/cve/CVE-2023-41359
https://access.redhat.com/security/cve/CVE-2023-41360
https://access.redhat.com/security/cve/CVE-2023-41909
https://access.redhat.com/security/cve/CVE-2023-46752
https://access.redhat.com/security/cve/CVE-2023-46753
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

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