CVE-2022-49258

crypto: ccree - Fix use after free in cc_cipher_exit()

CVSS 7.8 HIGHEPSS 0.3%CWE-416

Vexday Risk Score

21Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 7.8EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

26 fev 2025Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

In the Linux kernel, the following vulnerability has been resolved: crypto: ccree - Fix use after free in cc_cipher_exit() kfree_sensitive(ctx_p->user.key) will free the ctx_p->user.key. But ctx_p->user.key is still used in the next line, which will lead to a use after free. We can call kfree_sensitive() after dev_dbg() to avoid the uaf.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Produtos afetados

Linux · Linux

Referências

https://git.kernel.org/stable/c/25c358efee5153dfd240d4e0d3169d5bebe9cacd https://git.kernel.org/stable/c/335bf1fc74f775a8255257aa3e33763f2257b676 https://git.kernel.org/stable/c/3d950c34074ed74d2713c3856ba01264523289e6 https://git.kernel.org/stable/c/c93017c8d5ebf55a4e453ac7c84cc84cf92ab570 https://git.kernel.org/stable/c/cffb5382bd8d3cf21b874ab5b84bf7618932286b