Detections
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RHEL 9 : frr (RHSA-2024:2156)
critical Nessus Plugin ID 194782
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Synopsis
The remote Red Hat host is missing one or more security updates for frr.Description
The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:2156 advisory.- An issue found in Frrouting bgpd v.8.4.2 allows a remote attacker to cause a denial of service via the bgp_capability_llgr() function. (CVE-2023-31489)
- 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. There is an out-of-bounds read in bgp_attr_aigp_valid in bgpd/bgp_attr.c because there is no check for the availability of two bytes during AIGP validation. (CVE-2023-41359)
- An issue was discovered in FRRouting FRR through 9.0. bgpd/bgp_packet.c can read the initial byte of the ORF header in an ahead-of-stream situation. (CVE-2023-41360)
- 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.
Solution
Update the RHEL frr package based on the guidance in RHSA-2024:2156.See Also
https://access.redhat.com/errata/RHSA-2024:2156
https://access.redhat.com/security/cve/CVE-2023-31489
https://access.redhat.com/security/cve/CVE-2023-31490
https://access.redhat.com/security/cve/CVE-2023-41358
https://access.redhat.com/security/cve/CVE-2023-41359
https://access.redhat.com/security/cve/CVE-2023-41360
https://access.redhat.com/security/cve/CVE-2023-41909
Plugin Details
Severity: Critical
ID: 194782
File Name: redhat-RHSA-2024-2156.nasl
Version: 1.1
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 4/30/2024
Updated: 5/2/2024
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.0
CVSS v2
Risk Factor: High
Base Score: 9.4
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:C
CVSS Score Source: CVE-2023-41360
CVSS v3
Risk Factor: Critical
Base Score: 9.1
Temporal Score: 8.2
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:frr, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:frr-selinux
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 4/30/2024
Vulnerability Publication Date: 5/9/2023
Reference Information
CVE: CVE-2023-31489, CVE-2023-31490, CVE-2023-41358, CVE-2023-41359, CVE-2023-41360, CVE-2023-41909, CVE-2023-46752, CVE-2023-46753