CVE-2023-46752

An issue was discovered in FRRouting FRR through 9.0.1. It mishandles malformed MP_REACH_NLRI data, leading to a crash.

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: 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: 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)

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 Rocky Linux 8.10 Release Notes linked from the References section.

An issue was discovered in FRRouting FRR through 9.0.1. It mishandles malformed MP_REACH_NLRI data, leading to a crash.

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 AlmaLinux Release Notes linked from the References section.

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: 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: 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)

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 AlmaLinux Release Notes linked from the References section.

• CVE-2022-43681: fix bgpd crash on malformed BGP OPEN messages with insufficient data
• CVE-2022-40318: fix out-of-bounds read in bgp_open_option_parse with extended option params
• CVE-2023-31489: fix out-of-bounds read in BGP Long-lived Graceful-Restart capability parsing
• CVE-2023-46752: fix bgpd crash on malformed MP_REACH_NLRI packets

An issue was discovered in FRRouting FRR through 9.0.1. It mishandles malformed MP_REACH_NLRI data, leading to a crash.

These are all security issues fixed in the frr-8.4-7.1 package on the GA media of openSUSE Tumbleweed.

This update for frr fixes the following issues:

• CVE-2023-46753: Fixed a crash caused from a crafted BGP UPDATE message. (bsc#1216626)
• CVE-2023-46752: Fixed a crash caused from a mishandled malformed MP_REACH_NLRI data. (bsc#1216627)

This update for frr fixes the following issues:

• CVE-2023-46752: Fixed denial of service caused by mishandling malformed MP_REACH_NLRI data (bsc#1216627).
• CVE-2023-46753: Fixed denial of service caused by crafted BGP UPDATE messages (bsc#1216626).

This update for frr fixes the following issues:

Update to frr 8.5.6 (jsc#PED-PED-11092) including fixes for:

• CVE-2024-44070,CVE-2024-34088,CVE-2024-31951,CVE-2024-31950, CVE-2024-31948,CVE-2024-27913,CVE-2023-47235,CVE-2023-47234, CVE-2023-46753,CVE-2023-46752,CVE-2023-41909,CVE-2023-41360, CVE-2023-41358,CVE-2023-38802,CVE-2023-38407,CVE-2023-38406, CVE-2023-3748,CVE-2023-31490,CVE-2023-31489 and other bugfixes. See https://frrouting.org/release/8.5.6/ for details.

The most recent frr 8.x series provides several new features, improvements and bug fixes for various protocols and daemons, especially for PIM/PIMv6/BGP and VRF support.

See https://frrouting.org/release/8.5/ for details and links.

It was discovered that FRR incorrectly handled certain malformed NLRI data. A remote attacker could possibly use this issue to cause FRR to crash, resulting in a denial of service. (CVE-2023-46752)

It was discovered that FRR incorrectly handled certain BGP UPDATE messages. A remote attacker could possibly use this issue to cause FRR to crash, resulting in a denial of service. (CVE-2023-46753)

It was discovered that FRR incorrectly handled certain network traffic. A remote attacker could possibly use this issue to cause FRR to crash, resulting in a denial of service. (CVE-2022-26126, CVE-2022-26127, CVE-2022-26128, CVE-2022-26129, CVE-2022-37032, CVE-2022-37035, CVE-2023-31490, CVE-2023-38406, CVE-2023-38407, CVE-2023-46752, CVE-2023-46753, CVE-2023-47234, CVE-2023-47235, CVE-2024-31948)

Ben Cartwright-Cox discovered that FRR incorrectly handled certain network traffic. A remote attacker could possibly use this issue to cause FRR to crash, resulting in a denial of service. (CVE-2023-38802)