Allocation of Resources Without Limits or Throttling Affecting libdns1605 package, versions <9.16.6-150300.22.44.1


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-SLES156-LIBDNS1605-7247032
  • published12 Jun 2024
  • disclosed11 Jun 2024

Introduced: 11 Jun 2024

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

How to fix?

Upgrade SLES:15.6 libdns1605 to version 9.16.6-150300.22.44.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libdns1605 package and not the libdns1605 package as distributed by SLES. See How to fix? for SLES:15.6 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