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.
References
Link | Resource |
---|---|
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:01.fsdisclosure.asc | Vendor Advisory |
https://security.netapp.com/advisory/ntap-20210423-0002/ | Third Party Advisory |
Configurations
Configuration 1 (hide)
|
Information
Published : 2021-03-26 14:15
Updated : 2021-06-03 12:12
NVD link : CVE-2020-25578
Mitre link : CVE-2020-25578
JSON object : View
CWE
CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
Products Affected
freebsd
- freebsd