Resource Exhaustion Affecting bind-license package, versions <32:9.11.4-26.P2.el7_9.16


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-RHEL7-BINDLICENSE-8017196
  • published17 Sept 2024
  • disclosed13 Feb 2024

Introduced: 13 Feb 2024

CVE-2023-50868  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade RHEL:7 bind-license to version 32:9.11.4-26.P2.el7_9.16 or higher.
This issue was patched in RHSA-2024:3741.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind-license package and not the bind-license package as distributed by RHEL. See How to fix? for RHEL:7 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

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