CVE-2020-25578

Sažetak

In FreeBSD 12.2-STABLE before r368969, 11.4-STABLE before r369047, 12.2-RELEASE before p3, 12.1-RELEASE before p13 and 11.4-RELEASE before p7 several file systems were not properly initializing the d_off field of the dirent structures returned by VOP_READDIR. In particular, tmpfs(5), smbfs(5), autofs(5) and mqueuefs(5) were failing to do so. As a result, eight uninitialized kernel stack bytes may be leaked to userspace by these file systems.

Reference

https://security.FreeBSD.org/advisories/FreeBSD-SA-21:01.fsdisclosure.asc
https://security.netapp.com/advisory/ntap-20210423-0002/

CVSS

Base:	5.0
Impact:	2.9
Exploitability:	10.0

Pristup

Vektor	Složenost	Autentikacija
NETWORK	LOW	NONE

Impact

Povjerljivost	Cjelovitost	Dostupnost
PARTIAL	NONE	NONE

CVSS vektor

AV:N/AC:L/Au:N/C:P/I:N/A:N

Zadnje važnije ažuriranje

28-06-2022 - 14:11

Objavljeno

26-03-2021 - 21:15