CVE-2023-50868 Affecting bind-lite-devel package, versions <32:9.11.36-14.el8_10


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-ALMALINUX8-BINDLITEDEVEL-6611067
  • published12 Apr 2024
  • disclosed11 Apr 2024

Introduced: 11 Apr 2024

CVE-2023-50868  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 bind-lite-devel to version 32:9.11.36-14.el8_10 or higher.
This issue was patched in ALSA-2024:3271.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind-lite-devel package and not the bind-lite-devel package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 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