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CVE-2026-85977

Libtirpc: libtirpc: denial of service via unbounded memory allocation during portmapper response decoding PUBLISHED

Description (CNA)

A flaw was found in libtirpc. A remote attacker can exploit this vulnerability by sending specially crafted PMAPPROC_DUMP replies to a client application that uses the pmap_getmaps() function against an attacker-controlled host. This unbounded decoding can lead to excessive memory and CPU allocation, causing the client process to experience a Denial of Service (DoS) due to resource exhaustion.

Affected (CNA)

Vendor / productVersions
Red Hat / Red Hat Hardened Imagesunaffected 1.3.8-0.1.hum1 before *
Red Hat / Red Hat Enterprise Linux 10affected
Red Hat / Red Hat Enterprise Linux 6affected
Red Hat / Red Hat Enterprise Linux 7affected
Red Hat / Red Hat Enterprise Linux 8affected
Red Hat / Red Hat Enterprise Linux 9affected
Red Hat / Red Hat OpenShift Container Platform 4affected
Red Hat / Red Hat OpenShift Container Platform 4affected

CWE

CWE-1050

References

ADP enrichment

CISA-ADP

No English description supplied.