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CVE-2022-26495

Published: 6 March 2022

In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the name length field will cause a zero-sized buffer to be allocated for the name, resulting in a write to a dangling pointer. This issue exists for the NBD_OPT_INFO, NBD_OPT_GO, and NBD_OPT_EXPORT_NAME messages.

Priority

Medium

CVSS 3 base score: 9.8

Status

Package Release Status
nbd
Launchpad, Ubuntu, Debian
bionic
Released (1:3.16.2-1ubuntu0.2)
focal
Released (1:3.20-1ubuntu0.1)
impish
Released (1:3.21-1ubuntu0.1)
jammy
Released (1:3.23-3ubuntu1)
trusty Needs triage

upstream Needs triage

xenial Needs triage