An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur for a crafted BGP UPDATE message without mandatory attributes, e.g., one with only an unknown transit attribute.

The remote Ubuntu 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6807-1 advisory.

    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)

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.

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-2981 advisory.

    [7.5.1-22.0.1]
    - Fix POSTIN scriptlet [Orabug: 34712485]
    - Resolves: RHEL-15916 - Flowspec overflow in bgpd/bgp_flowspec.c
    - Resolves: RHEL-15919 - Out of bounds read in bgpd/bgp_label.c
    - Resolves: RHEL-15869 - crash from specially crafted MP_UNREACH_NLRI-containing BGP UPDATE message
    - Resolves: RHEL-15868 - crash from malformed EOR-containing BGP UPDATE message

    [7.5.1-22]
    - Resolves: RHEL-22303 - Zebra not fetching host routes

    [7.5.1-21]
    - Resolves: RHEL-2216 - NULL pointer dereference

    [7.5.1-20]
    - Resolves: RHEL-4797 - missing length check in bgp_attr_psid_sub() can lead do DoS

    [7.5.1-19]
    - Resolves: RHEL-14824 - crafted BGP UPDATE message leading to a crash

    [7.5.1-18]
    - Resolves: RHEL-14821 - mishandled malformed data leading to a crash

    [7.5.1-17]
    - Resolves: RHEL-6583 - Routes are not refreshed after changing the inbound route rules from deny to     permit

    [7.5.1-16]
    - Resolves: RHEL-15916 - Flowspec overflow in bgpd/bgp_flowspec.c
    - Resolves: RHEL-15919 - Out of bounds read in bgpd/bgp_label.c
    - Resolves: RHEL-15869 - crash from specially crafted MP_UNREACH_NLRI-containing BGP UPDATE message
    - Resolves: RHEL-15868 - crash from malformed EOR-containing BGP UPDATE message

    [7.5.1-15]
    - Resolves: RHEL-12039 - crash in plist update

    [7.5.1-14]
    - Resolves: RHEL-6617 - 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 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:2981 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: 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 Red Hat Enterprise Linux 8.10 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 CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2024:2981 advisory.

  - 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)

  - 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. 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 was discovered in FRRouting FRR through 9.0.1. It mishandles malformed MP_REACH_NLRI data,     leading to a crash. (CVE-2023-46752)

  - An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur for a crafted BGP UPDATE message     without mandatory attributes, e.g., one with only an unknown transit attribute. (CVE-2023-46753)

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

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

  - 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 9.0.1. A crash can occur for a crafted BGP UPDATE message     without mandatory attributes, e.g., one with only an unknown transit attribute. (CVE-2023-46753)

  - 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 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 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)

  - 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. 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 was discovered in FRRouting FRR through 9.0.1. It mishandles malformed MP_REACH_NLRI data,     leading to a crash. (CVE-2023-46752)

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 Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3797 advisory.

  - Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the input packet     length in isisd/isis_tlvs.c. (CVE-2022-26125)

  - Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a non-zero-     terminated binary string in isis_nb_notifications.c. (CVE-2022-26126)

  - A buffer overflow vulnerability exists in FRRouting through 8.1.0 due to missing a check on the input     packet length in the babel_packet_examin function in babeld/message.c. (CVE-2022-26127)

  - A buffer overflow vulnerability exists in FRRouting through 8.1.0 due to a wrong check on the input packet     length in the babel_packet_examin function in babeld/message.c. (CVE-2022-26128)

  - Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the subtlv length     in the functions, parse_hello_subtlv, parse_ihu_subtlv, and parse_update_subtlv in babeld/message.c.
    (CVE-2022-26129)

  - An issue was discovered in bgpd in FRRouting (FRR) 8.3. In bgp_notify_send_with_data() and     bgp_process_packet() in bgp_packet.c, there is a possible use-after-free due to a race condition. This     could lead to Remote Code Execution or Information Disclosure by sending crafted BGP packets. User     interaction is not needed for exploitation. (CVE-2022-37035)

  - bgpd/bgp_flowspec.c in FRRouting (FRR) before 8.4.3 mishandles an nlri length of zero, aka a flowspec     overflow. (CVE-2023-38406)

  - bgpd/bgp_label.c in FRRouting (FRR) before 8.5 attempts to read beyond the end of the stream during     labeled unicast parsing. (CVE-2023-38407)

  - An issue was discovered in FRRouting FRR through 9.0.1. It mishandles malformed MP_REACH_NLRI data,     leading to a crash. (CVE-2023-46752)

  - An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur for a crafted BGP UPDATE message     without mandatory attributes, e.g., one with only an unknown transit attribute. (CVE-2023-46753)

  - An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur when processing a crafted BGP     UPDATE message with a MP_UNREACH_NLRI attribute and additional NLRI data (that lacks mandatory path     attributes). (CVE-2023-47234)

  - An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur when a malformed BGP UPDATE     message with an EOR is processed, because the presence of EOR does not lead to a treat-as-withdraw     outcome. (CVE-2023-47235)

  - In FRRouting (FRR) through 9.1, an attacker using a malformed Prefix SID attribute in a BGP UPDATE packet     can cause the bgpd daemon to crash. (CVE-2024-31948)

  - In FRRouting (FRR) through 9.1, an infinite loop can occur when receiving a MP/GR capability as a dynamic     capability because malformed data results in a pointer not advancing. (CVE-2024-31949)

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 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4483-1 advisory.

  - An issue was discovered in FRRouting FRR through 9.0.1. It mishandles malformed MP_REACH_NLRI data,     leading to a crash. (CVE-2023-46752)

  - An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur for a crafted BGP UPDATE message     without mandatory attributes, e.g., one with only an unknown transit attribute. (CVE-2023-46753)

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

The remote openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4473-1 advisory.

  - An issue was discovered in FRRouting FRR through 9.0.1. It mishandles malformed MP_REACH_NLRI data,     leading to a crash. (CVE-2023-46752)

  - An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur for a crafted BGP UPDATE message     without mandatory attributes, e.g., one with only an unknown transit attribute. (CVE-2023-46753)

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 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6482-1 advisory.

  - An out-of-bounds read in the BGP daemon of FRRouting FRR before 8.4 may lead to a segmentation fault and     denial of service. This occurs in bgp_capability_msg_parse in bgpd/bgp_packet.c. (CVE-2022-37032)

  - An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur for a crafted BGP UPDATE message     without mandatory attributes, e.g., one with only an unknown transit attribute. (CVE-2023-46753)

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 / 23.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6481-1 advisory.

  - An issue was discovered in FRRouting FRR through 9.0.1. It mishandles malformed MP_REACH_NLRI data,     leading to a crash. (CVE-2023-46752)

  - An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur for a crafted BGP UPDATE message     without mandatory attributes, e.g., one with only an unknown transit attribute. (CVE-2023-46753)

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

The version of frr installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-46753 advisory.

  - An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur for a crafted BGP UPDATE message     without mandatory attributes, e.g., one with only an unknown transit attribute. (CVE-2023-46753)

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

ID	Name	Product	Family	Severity
200127	Ubuntu 20.04 LTS : FRR vulnerabilities (USN-6807-1)	Nessus	Ubuntu Local Security Checks	critical
197991	Oracle Linux 8 : frr (ELSA-2024-2981)	Nessus	Oracle Linux Local Security Checks	high
197804	RHEL 8 : frr (RHSA-2024:2981)	Nessus	Red Hat Local Security Checks	high
197686	CentOS 8 : frr (CESA-2024:2981)	Nessus	CentOS Local Security Checks	high
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
194417	Debian dla-3797 : frr - security update	Nessus	Debian Local Security Checks	critical
186021	SUSE SLES15 / openSUSE 15 Security Update : frr (SUSE-SU-2023:4483-1)	Nessus	SuSE Local Security Checks	medium
185976	SUSE SLES15 / openSUSE 15 Security Update : frr (SUSE-SU-2023:4473-1)	Nessus	SuSE Local Security Checks	medium
185781	Ubuntu 20.04 LTS : Quagga vulnerabilities (USN-6482-1)	Nessus	Ubuntu Local Security Checks	critical
185780	Ubuntu 22.04 LTS / 23.04 / 23.10 : FRR vulnerabilities (USN-6481-1)	Nessus	Ubuntu Local Security Checks	medium
185476	CBL Mariner 2.0 Security Update: frr (CVE-2023-46753)	Nessus	MarinerOS Local Security Checks	medium

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CVE-2023-46753

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