SUSE SLES15: frr / frr-devel / libfrr0 / libfrr_pb0 / libfrrcares0 / etc (SUSE-SU-2026:2644-1)

medium Nessus Plugin ID 323250

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2644-1 advisory.

This update for frr fixes the following issues

- CVE-2026-28532: Denial of Service due to integer overflow in OSPF TLV parser functions (bsc#1263859).
- CVE-2026-37457: An off-by-one out-of-bounds write vulnerability in the bgp_flowspec_op_decode() function (bgpd/bgp_flowspec_util.c) of FRRouting (FRR) stable/10.0 allows attackers to cause a Denial of Service (bsc#1263863).
- CVE-2026-37458: missing input validation in the `MP_REACH_NLRI` component allows authenticated attackers to cause a DoS via a crafted UPDATE message (bsc#1263974).

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

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

Solution

Update the affected packages.

Plugin Details

Severity: Medium

ID: 323250

File Name: suse_SU-2026-2644-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 6/27/2026

Updated: 6/27/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, tenable_cloud_security, tenable_self_hosted_container_security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-28532

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2026-37457

CVSS v4

Risk Factor: Medium

Base Score: 6

Threat Score: 2.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:frr, p-cpe:/a:novell:suse_linux:libfrrzmq0, p-cpe:/a:novell:suse_linux:libfrrospfapiclient0, p-cpe:/a:novell:suse_linux:libfrr0, p-cpe:/a:novell:suse_linux:libfrrsnmp0, cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:frr-devel, p-cpe:/a:novell:suse_linux:libfrrfpm_pb0, p-cpe:/a:novell:suse_linux:libmlag_pb0, p-cpe:/a:novell:suse_linux:libfrrgrpc_pb0, p-cpe:/a:novell:suse_linux:libfrr_pb0, p-cpe:/a:novell:suse_linux:libfrrcares0

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 6/26/2026

Vulnerability Publication Date: 4/30/2026

Reference Information

CVE: CVE-2026-28532, CVE-2026-37457, CVE-2026-37458

SuSE: SUSE-SU-2026:2644-1

Detections

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