CVE-2026-112314

Public on 2026-11-09

Modified on 2026-11-12

Description

clnttcp_call() in lib/rpc/clnt_tcp.c in MIT Kerberos 5 (aka krb5) does not free the RPC reply verifier between retries, which allows remote attackers to cause a denial of service (memory leak in GSS-RPC client programs) by injecting RPC replies with mismatched XIDs or by triggering authentication retries.

Severity

Medium

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CVSS v3 Base Score

5.3

See breakdown

Affected Packages

Platform	Package	Status
Amazon Linux 2 - Core	krb5	Pending Fix
Amazon Linux 2023	krb5	Pending Fix
Amazon Linux 2027 Preview	krb5	Pending Fix

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-112314 Mitre: CVE-2026-112314