VulnerabilityModified
CVE-2020-25578
As a result, eight uninitialized kernel stack bytes may be leaked to userspace by these file systems.
MEDIUM 5.3EPSS 2.31%
Does this matter?
Lower severity and a low EPSS score (2.31%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 2.31% probability · 82th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-665
- Affected
- freebsd/freebsd
- Source
- secteam@freebsd.org
References
- https://security.FreeBSD.org/advisories/FreeBSD-SA-21:01.fsdisclosure.ascVendor Advisory
- https://security.netapp.com/advisory/ntap-20210423-0002/Third Party Advisory
- https://security.FreeBSD.org/advisories/FreeBSD-SA-21:01.fsdisclosure.ascVendor Advisory
- https://security.netapp.com/advisory/ntap-20210423-0002/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.