high
7.5
CWE
476
Advisory Published
Updated

CVE-2023-41358: Null Pointer Dereference

First published: Tue Aug 29 2023(Updated: )

An issue was discovered in FRRouting FRR through 9.0. bgpd/bgp_packet.c processes NLRIs if the attribute length is zero.

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Frrouting Frrouting<=9.0
Debian Debian Linux=10.0
Debian Debian Linux=11.0
Debian Debian Linux=12.0
Fedoraproject Fedora=37
Fedoraproject Fedora=38
Fedoraproject Fedora=39
debian/frr<=6.0.2-2+deb10u1
7.5.1-1.1+deb10u1
7.5.1-1.1+deb11u2
8.4.4-1.1~deb12u1
9.1-0.1
ubuntu/frr<7.2.1-1ubuntu0.2+
7.2.1-1ubuntu0.2+
ubuntu/frr<8.1-1ubuntu1.6
8.1-1ubuntu1.6
ubuntu/frr<8.4.2-1ubuntu1.4
8.4.2-1ubuntu1.4
ubuntu/quagga<1.2.4-1ubuntu0.1~
1.2.4-1ubuntu0.1~
ubuntu/quagga<1.2.4-4ubuntu0.1
1.2.4-4ubuntu0.1
ubuntu/quagga<0.99.24.1-2ubuntu1.4+
0.99.24.1-2ubuntu1.4+
redhat/frr<9.1
9.1
redhat/frr<8.5
8.5

Remedy

https://github.com/FRRouting/frr/pull/14260

Remedy

https://github.com/FRRouting/frr/pull/14260/commits/28ccc24d38df1d51ed8a563507e5d6f6171fdd38

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-41358?

    CVE-2023-41358 is a vulnerability in FRRouting FRR versions up to 9.0 that allows remote attackers to cause a denial of service (crash) via a crafted attribute length of 0 in a BGP packet.

  • How severe is CVE-2023-41358?

    CVE-2023-41358 has a severity rating of high, with a CVSS score of 7.5.

  • How does CVE-2023-41358 affect the FRRouting software?

    CVE-2023-41358 affects FRRouting FRR versions up to 9.0.

  • Is there a fix for CVE-2023-41358?

    Yes, the fix for CVE-2023-41358 is available in FRRouting FRR version 9.0 or later.

  • Where can I find more information about CVE-2023-41358?

    You can find more information about CVE-2023-41358 in the following references: [link1](https://github.com/FRRouting/frr/pull/14260), [link2](https://github.com/FRRouting/frr/commit/28ccc24d38df1d51ed8a563507e5d6f6171fdd38), [link3](https://github.com/FRRouting/frr/pull/14270).

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