An issue found in Frrouting bgpd v.8.4.2 allows a remote attacker to cause a denial of service via the bgp_capability_llgr() function.

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-2156 advisory.

    [8.5.3-4]
    - Resolves: RHEL-14825 - crafted BGP UPDATE message leading to a crash

    [8.5.3-3]
    - Resolves: RHEL-14822 - mishandled malformed data leading to a crash

    [8.5.3-2]
    - Resolves: RHEL-15915 - crash from specially crafted MP_UNREACH_NLRI-containing BGP UPDATE message
    - Resolves: RHEL-15918 - crash from malformed EOR-containing BGP UPDATE message

    [8.5.3-1]
    - Resolves: RHEL-15291 - Rebase FRR to version 8.5.3 in RHEL9

    [8.3.1-12]
    - Resolves: RHEL-3541 - Incorrect handling of a error in parsing of an invalid section of a BGP update can     de-peer a router

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:2156 advisory.

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-61abba57d8 advisory.

  - FRRouting FRR 7.5.1 through 9.0 and Pica8 PICOS 4.3.3.2 allow a remote attacker to cause a denial of     service via a crafted BGP update with a corrupted attribute 23 (Tunnel Encapsulation). (CVE-2023-38802)

  - An issue was discovered in FRRouting FRR through 9.0. bgpd/bgp_packet.c processes NLRIs if the attribute     length is zero. (CVE-2023-41358)

  - An issue was discovered in FRRouting FRR through 9.0. There is an out-of-bounds read in     bgp_attr_aigp_valid in bgpd/bgp_attr.c because there is no check for the availability of two bytes during     AIGP validation. (CVE-2023-41359)

  - An issue was discovered in FRRouting FRR through 9.0. bgpd/bgp_packet.c can read the initial byte of the     ORF header in an ahead-of-stream situation. (CVE-2023-41360)

  - 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. (CVE-2023-41909)

  - An issue found in Frrouting bgpd v.8.4.2 allows a remote attacker to cause a denial of service via the     bgp_capability_llgr() function. (CVE-2023-31489)

  - An issue found in Frrouting bgpd v.8.4.2 allows a remote attacker to cause a denial of service via the     bgp_attr_psid_sub() function. (CVE-2023-31490)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 39 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-514db5339e advisory.

  - FRRouting FRR 7.5.1 through 9.0 and Pica8 PICOS 4.3.3.2 allow a remote attacker to cause a denial of     service via a crafted BGP update with a corrupted attribute 23 (Tunnel Encapsulation). (CVE-2023-38802)

  - An issue was discovered in FRRouting FRR through 9.0. bgpd/bgp_packet.c processes NLRIs if the attribute     length is zero. (CVE-2023-41358)

  - An issue was discovered in FRRouting FRR through 9.0. There is an out-of-bounds read in     bgp_attr_aigp_valid in bgpd/bgp_attr.c because there is no check for the availability of two bytes during     AIGP validation. (CVE-2023-41359)

  - An issue was discovered in FRRouting FRR through 9.0. bgpd/bgp_packet.c can read the initial byte of the     ORF header in an ahead-of-stream situation. (CVE-2023-41360)

  - 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. (CVE-2023-41909)

  - An issue found in Frrouting bgpd v.8.4.2 allows a remote attacker to cause a denial of service via the     bgp_capability_llgr() function. (CVE-2023-31489)

  - An issue found in Frrouting bgpd v.8.4.2 allows a remote attacker to cause a denial of service via the     bgp_attr_psid_sub() function. (CVE-2023-31490)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 37 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-ce436d56f8 advisory.

  - FRRouting FRR 7.5.1 through 9.0 and Pica8 PICOS 4.3.3.2 allow a remote attacker to cause a denial of     service via a crafted BGP update with a corrupted attribute 23 (Tunnel Encapsulation). (CVE-2023-38802)

  - An issue was discovered in FRRouting FRR through 9.0. bgpd/bgp_packet.c processes NLRIs if the attribute     length is zero. (CVE-2023-41358)

  - An issue was discovered in FRRouting FRR through 9.0. There is an out-of-bounds read in     bgp_attr_aigp_valid in bgpd/bgp_attr.c because there is no check for the availability of two bytes during     AIGP validation. (CVE-2023-41359)

  - An issue was discovered in FRRouting FRR through 9.0. bgpd/bgp_packet.c can read the initial byte of the     ORF header in an ahead-of-stream situation. (CVE-2023-41360)

  - 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. (CVE-2023-41909)

  - An issue found in Frrouting bgpd v.8.4.2 allows a remote attacker to cause a denial of service via the     bgp_capability_llgr() function. (CVE-2023-31489)

  - An issue found in Frrouting bgpd v.8.4.2 allows a remote attacker to cause a denial of service via the     bgp_attr_psid_sub() function. (CVE-2023-31490)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:2518-1 advisory.

  - An issue found in Frrouting bgpd v.8.4.2 allows a remote attacker to cause a denial of service via the     bgp_capability_llgr() function. (CVE-2023-31489)

  - An issue found in Frrouting bgpd v.8.4.2 allows a remote attacker to cause a denial of service via the     bgp_attr_psid_sub() function. (CVE-2023-31490)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 22.04 LTS / 23.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6136-1 advisory.

    It was discovered that FRR incorrectly handled parsing certain BGP messages. A remote attacker could     possibly use this issue to cause FRR to crash, resulting in a denial of service. This issue only affected     Ubuntu 23.04. (CVE-2023-31489)

    It was discovered that FRR incorrectly handled parsing certain BGP messages. A remote attacker could     possibly use this issue to cause FRR to crash, resulting in a denial of service. (CVE-2023-31490)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
195033	Oracle Linux 9 : frr (ELSA-2024-2156)	Nessus	Oracle Linux Local Security Checks	critical
194782	RHEL 9 : frr (RHSA-2024:2156)	Nessus	Red Hat Local Security Checks	critical
185613	Fedora 38 : frr (2023-61abba57d8)	Nessus	Fedora Local Security Checks	critical
185611	Fedora 39 : frr (2023-514db5339e)	Nessus	Fedora Local Security Checks	critical
185610	Fedora 37 : frr (2023-ce436d56f8)	Nessus	Fedora Local Security Checks	critical
177378	SUSE SLES15 Security Update : frr (SUSE-SU-2023:2518-1)	Nessus	SuSE Local Security Checks	high
176713	Ubuntu 22.04 LTS / 23.04 : FRR vulnerabilities (USN-6136-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2023-31489

medium

Tenable Plugins

critical

critical

critical

critical

critical

high

high