Allocation of Resources Without Limits or Throttling Affecting python3-bind package, versions <9.16.48-150500.8.16.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
100% (100th percentile)

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  • Snyk IDSNYK-SLES155-PYTHON3BIND-6261663
  • published22 Feb 2024
  • disclosed21 Feb 2024

Introduced: 21 Feb 2024

CVE-2023-50387  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 python3-bind to version 9.16.48-150500.8.16.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-bind package and not the python3-bind package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.

References

CVSS Base Scores

version 3.1