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CVE-2026-49414

ASLR bypass for setuid executables via procctl(2)

CVSS 7.8 HIGHEPSS 0.1%CWE-179
Vexday Risk Score
21Baixo
Decisão SSVC (CISA)
Track
Sem sinal de exploração → monitorar
CVSS 7.8EPSS 0.1%KEV nãoPoC Nuclei Metasploit Patch referenciado
Ciclo de vida
27 jun 2026Publicada no NVD
Recomendação: Monitorar — sem sinal de exploração no momento.
The ELF image activator cleared per-process ASLR preference flags for setuid binaries after the code that computes the PIE base address, rather than before. As a result, a user-requested ASLR disable was still in effect at the point where the base address was chosen. An unprivileged local user can disable ASLR for a setuid PIE binary by calling procctl(2) before execve(2). This makes exploitation of any separate memory corruption vulnerability in that binary significantly easier.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
FreeBSD · FreeBSD

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