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

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3865 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-3865-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                         Tobias Frost     September 03, 2024                            https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : frr     Version        : 7.5.1-1.1+deb11u3     CVE ID         : CVE-2022-26125 CVE-2022-26126 CVE-2022-26127 CVE-2022-26128                      CVE-2022-26129 CVE-2022-37035 CVE-2023-38406 CVE-2023-38407                      CVE-2023-46752 CVE-2023-46753 CVE-2023-47234 CVE-2023-47235                      CVE-2024-31948 CVE-2024-31949 CVE-2024-44070     Debian Bug     : 1008010 1016978 1055852 1079649

    Several vulnerabilities have been found in frr, the FRRouting suite of     internet protocols. An attacker could craft packages to potentially trigger     those effects: buffer overflows with the possibility to gain remote code     execution, buffer overreads, crashes or trick the software to enter an     infinite loop.

    CVE-2022-26125

        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-2022-26126

        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-2022-26127

        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-2022-26128

        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-2022-26129

        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-2022-37035

        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-2023-38406

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

    CVE-2023-38407

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

    CVE-2023-46752

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

    CVE-2023-46753

        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-2023-47234

        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-2023-47235

        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-2024-31948

        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-2024-31949

        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-2024-44070

        An issue was discovered in FRRouting (FRR) through 10.1. bgp_attr_encap         in bgpd/bgp_attr.c does not check the actual remaining stream length         before taking the TLV value.

    For Debian 11 bullseye, these problems have been fixed in version     7.5.1-1.1+deb11u3.

    We recommend that you upgrade your frr packages.

    For the detailed security status of frr please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/frr

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian 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 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-2023-46752 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)

Note that Nessus has not tested for this issue 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-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.

    [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 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 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.

    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)

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
206448	Debian dla-3865 : frr - security update	Nessus	Debian Local Security Checks	critical
201737	CBL Mariner 2.0 Security Update: frr (CVE-2023-46752)	Nessus	MarinerOS Local Security Checks	medium
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
185780	Ubuntu 22.04 LTS / 23.04 / 23.10 : FRR vulnerabilities (USN-6481-1)	Nessus	Ubuntu Local Security Checks	medium

Detections

Analytics

CVE-2023-46752

medium

Tenable Plugins

critical

medium

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high

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medium