CVE-2023-50868 Affecting bind package, versions <9.16.48-150400.5.40.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (19th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-SLES154-BIND-6263913
  • published23 Feb 2024
  • disclosed22 Feb 2024

Introduced: 22 Feb 2024

CVE-2023-50868  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 bind to version 9.16.48-150400.5.40.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind package and not the bind package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations.

References

CVSS Scores

version 3.1