CVE-2026-49413

7.1 Élevée

Publiée le 27/06/2026 à 11:16 · Modifiée le 01/07/2026 à 16:04 · Analysée par le NVD · Source : secteam@freebsd.org

Description

The Linuxulator determined whether a binary was set-user-ID or set-group-ID by checking the P_SUGID process flag. During execve(2), this flag is not yet set at the point where the auxiliary vector is constructed, so AT_SECURE was incorrectly set to zero for set-user-ID and set-group-ID executables. An unprivileged local user can inject a shared library via LD_PRELOAD into a set-user-ID or set-group-ID Linux binary, gaining the privileges of that binary.

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Produits concernés

FreeBSD
Freebsd freebsd

Scores CVSS

Version	Score	Source	Vecteur
3.1	7.1 Élevée	134c704f-9b21-4f2e-91b3-4a467353bcc0	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H`

Faiblesses (CWE)

CWE-266

Références

https://security.freebsd.org/advisories/FreeBSD-SA-26:30.linux.asc Vendor Advisory

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories