CVE-2023-50868 Affecting bind-utils-debuginfo package, versions <32:9.11.36-11.el8_9.1


Severity

Recommended
0.0
high
0
10

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
73.73% (100th percentile)

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  • Snyk IDSNYK-ROCKY8-BINDUTILSDEBUGINFO-6809768
  • published7 May 2024
  • disclosed14 Feb 2024

Introduced: 14 Feb 2024

CVE-2023-50868  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 bind-utils-debuginfo to version 32:9.11.36-11.el8_9.1 or higher.
This issue was patched in RLSA-2024:1782.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind-utils-debuginfo package and not the bind-utils-debuginfo package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux: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 Base Scores

version 3.1