CVE-2024-27913
Description
A flaw was found in FRRouting. A missing check for a NULL attribute in the ospf_te_parse_te in ospfd/ospf_te.c file may lead to a crash of the ospfd daemon and a denial of service through a malformed OSPF LSA packet.
Statement
This vulnerability in FRRouting (FRR), specifically within the ospf_te_parse_te function, poses a moderate severity risk due to its potential to cause a denial-of-service (DoS) condition in the ospfd daemon. The issue arises from improper handling of malformed OSPF Link State Advertisement (LSA) packets, resulting in an attempted access to a missing attribute field. This access violation leads to a crash of the ospfd daemon, disrupting OSPF routing functionality within the affected network segment.
Mitigation
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 6.5 | 6.5 | N/A |
| Attack Vector | Adjacent Network | Adjacent Network | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | None | None | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | High | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Understanding the Weakness (CWE)
Confidentiality,Availability,Integrity
Technical Impact: Read Application Data; DoS: Crash, Exit, or Restart; Unexpected State
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
