Vulnerability Name: | CVE-2020-25578 (CCN-198982) | ||||||||||||
Assigned: | 2020-09-14 | ||||||||||||
Published: | 2021-01-29 | ||||||||||||
Updated: | 2021-06-03 | ||||||||||||
Summary: | 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 v3 Severity: | 5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) 4.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
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CVSS v2 Severity: | 5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
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Vulnerability Type: | CWE-200 | ||||||||||||
Vulnerability Consequences: | Obtain Information | ||||||||||||
References: | Source: MITRE Type: CNA CVE-2020-25578 Source: XF Type: UNKNOWN freebsd-cve202025578-info-disc(198982) Source: MISC Type: Vendor Advisory https://security.FreeBSD.org/advisories/FreeBSD-SA-21:01.fsdisclosure.asc Source: CONFIRM Type: Third Party Advisory https://security.netapp.com/advisory/ntap-20210423-0002/ Source: CCN Type: FreeBSD Security Advisory FreeBSD-SA-21:01.fsdisclosure Uninitialized kernel stack leaks in several file systems Source: CCN Type: WhiteSource Vulnerability Database CVE-2020-25578 | ||||||||||||
Vulnerable Configuration: | Configuration 1: Configuration CCN 1: ![]() | ||||||||||||
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