Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : FRR vulnerabilities (USN-8376-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8376-1 advisory. It was discovered that FRR incorrectly handled certain OSPF Traffic Engineering and Segment Routing TLVs. An attacker cou...

PT-2026-43275

Name of the Vulnerable Software and Affected Versions FastNetMon Community Edition versions prior to 1.2.10 Description Multiple out-of-bounds reads exist in the BGP MP REACH NLRI IPv6 attribute decoder. The decode mp reach ipv6 function in src/bgp protocol.cpp casts raw pointers to structure typ...

UBUNTU-CVE-2026-37458

Missing input validation in the MPREACHNLRI component of FRRouting FRR stable/10.0 to stable/10.6 allows authenticated attackers to cause a Denial of Service DoS via supplying a crafted UPDATE message...

CLSA-2025-1762420748 frr: Fix of 4 CVEs

CVE-2023-41358: fix crash when processing NLRIs with zero attribute length - CVE-2023-47235: fix EOR handling to avoid unwanted processing of malformed attributes - CVE-2023-46753: fix mandatory attributes check for UPDATE messages with unknown transit attributes - CVE-2023-47234: fix handling...

frr: processes invalid NLRIs if attribute length is zero

A flaw was found in FRRouting, where it is susceptible to a denial of service vulnerability triggered by a NULL pointer dereference issue during the processing of Network Layer Reachability Information NLRIs with a zero attribute length. The vulnerability arises from inadequate validation of...

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).

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UBUNTU-CVE-2023-38406

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

AZL-34690 CVE-2023-47234 affecting package frr for versions less than 9.1-2

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

DEBIAN-CVE-2023-41358

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

CVE-2018-16230

The BGP parser in tcpdump before 4.9.3 has a buffer over-read in print-bgp.c:bgpattrprint MPREACHNLRI...