CVE-2020-25578

CVE	CVE-2020-25578
State	PUBLIC
Assigner	[email protected]
Source Priority	CVE Program / NVD first with legacy fallback
Published	2021-03-26 21:15:00 UTC
Updated	2022-06-28 14:11:00 UTC
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.

Problem Types: CWE-665

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Freebsd	Freebsd	11.4	-	All	All
Operating System	Freebsd	Freebsd	11.4	p1	All	All
Operating System	Freebsd	Freebsd	11.4	p2	All	All
Operating System	Freebsd	Freebsd	11.4	p3	All	All
Operating System	Freebsd	Freebsd	11.4	p4	All	All
Operating System	Freebsd	Freebsd	11.4	p5	All	All
Operating System	Freebsd	Freebsd	11.4	p6	All	All
Operating System	Freebsd	Freebsd	12.1	-	All	All
Operating System	Freebsd	Freebsd	12.1	p1	All	All
Operating System	Freebsd	Freebsd	12.1	p10	All	All
Operating System	Freebsd	Freebsd	12.1	p11	All	All
Operating System	Freebsd	Freebsd	12.1	p12	All	All
Operating System	Freebsd	Freebsd	12.1	p2	All	All
Operating System	Freebsd	Freebsd	12.1	p3	All	All
Operating System	Freebsd	Freebsd	12.1	p4	All	All
Operating System	Freebsd	Freebsd	12.1	p5	All	All
Operating System	Freebsd	Freebsd	12.1	p6	All	All
Operating System	Freebsd	Freebsd	12.1	p7	All	All
Operating System	Freebsd	Freebsd	12.1	p8	All	All
Operating System	Freebsd	Freebsd	12.1	p9	All	All
Operating System	Freebsd	Freebsd	12.2	-	All	All
Operating System	Freebsd	Freebsd	12.2	p1	All	All
Operating System	Freebsd	Freebsd	12.2	p2	All	All

Reference	Source	Link	Tags
security.FreeBSD.org/advisories/FreeBSD-SA-21:01.fsdisclosure.asc	MISC	security.FreeBSD.org
April 2021 FreeBSD Vulnerabilities in NetApp Products \| NetApp Product Security	CONFIRM	security.netapp.com
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

690342 Free Berkeley Software Distribution (FreeBSD) Security Update for FreeBSD (a9c6e9be-61fb-11eb-b87a-901b0ef719ab)