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Fencer Vulns
critical 9.1

CVE-2022-37032 json

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.

published 2022-09-19 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-39686

cvss
9.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

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.

Patch / fix

  • frrouting frrouting 8.4
  • frr Debian 14, Debian 13, Debian 12 8.4.1-1

debian advisories DEBIAN-CVE-2022-37032

  • frr Ubuntu 22.04 LTS 8.1-1ubuntu1.2
  • quagga Ubuntu 20.04 LTS 1.2.4-4ubuntu0.4
  • frr Ubuntu Pro 20.04 LTS 7.2.1-1ubuntu0.2+esm2

ubuntu advisories UBUNTU-CVE-2022-37032

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • frr RHEL 8 7.5.1-7.el8
  • frr-selinux RHEL 8 7.5.1-7.el8
  • frr RHEL 9 8.3.1-5.el9
  • frr-selinux RHEL 9 8.3.1-5.el9

red hat advisories RHSA-2023:2801RHSA-2023:2202

  • quagga SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE Module for Server Applications 15 SP6 +7 more 1.1.1-150400.12.8.1
  • quagga SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +4 more 1.1.1-150000.4.6.1
  • quagga SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 1.1.1-17.13.1
  • frr SLE Module for Server Applications 15 SP4, SLE Module for Server Applications 15 SP3, openSUSE Leap 15.4 +1 more 7.4-150300.4.7.1

suse advisories SUSE-SU-2024:3478-1SUSE-SU-2024:3433-1SUSE-SU-2024:3426-1SUSE-SU-2022:3246-1

  • frr openSUSE Tumbleweed 8.1-5.1

opensuse advisories openSUSE-SU-2024:12307-1

  • frr AlmaLinux 8 7.5.1-7.el8
  • frr-selinux AlmaLinux 8 7.5.1-7.el8
  • frr AlmaLinux 9 8.3.1-5.el9
  • frr-selinux AlmaLinux 9 8.3.1-5.el9

almalinux advisories ALSA-2023:2801ALSA-2023:2202

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-37032 updated cvss 7.1

frr: out-of-bounds read in the BGP daemon may lead to information disclosure or denial of service

  • Red Hat Enterprise Linux AppStream (v. 8) frr 7.5.1-7.el8, frr-selinux 7.5.1-7.el8
    fixed: vendor fix RHSA-2023:2801
  • Red Hat Enterprise Linux AppStream (v. 9) frr 8.3.1-5.el9, frr-selinux 8.3.1-5.el9
    fixed: vendor fix RHSA-2023:2202

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.21% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • bugzilla.suse.com https://bugzilla.suse.com/show_bug.cgi?id=1202023 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.