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CVE-2020-25212

HIGH

7.0

Description

A TOCTOU mismatch in the NFS client code in the Linux kernel before 5.8.3 could be used by local attackers to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c, aka CID-b4487b935452.

CVE Details

CVSS v3.1 Score7.0

SeverityHIGH

CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorLOCAL

ComplexityHIGH

Privileges RequiredLOW

User InteractionNONE

Published9/9/2020

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

canonical:ubuntu_linuxdebian:debian_linuxlinux:linux_kernelopensuse:leap

Weaknesses (CWE)

CWE-367CWE-787

References

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html(cve@mitre.org)

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00035.html(cve@mitre.org)

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html(cve@mitre.org)

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.3(cve@mitre.org)

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b4487b93545214a9db8cbf32e86411677b0cca21(cve@mitre.org)

https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html(cve@mitre.org)

https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html(cve@mitre.org)

https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html(cve@mitre.org)

https://twitter.com/grsecurity/status/1303370421958578179(cve@mitre.org)

https://usn.ubuntu.com/4525-1/(cve@mitre.org)

https://usn.ubuntu.com/4527-1/(cve@mitre.org)

https://usn.ubuntu.com/4578-1/(cve@mitre.org)

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html(af854a3a-2127-422b-91ae-364da2661108)

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00035.html(af854a3a-2127-422b-91ae-364da2661108)

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html(af854a3a-2127-422b-91ae-364da2661108)

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.3(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b4487b93545214a9db8cbf32e86411677b0cca21(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html(af854a3a-2127-422b-91ae-364da2661108)

https://twitter.com/grsecurity/status/1303370421958578179(af854a3a-2127-422b-91ae-364da2661108)

https://usn.ubuntu.com/4525-1/(af854a3a-2127-422b-91ae-364da2661108)

https://usn.ubuntu.com/4527-1/(af854a3a-2127-422b-91ae-364da2661108)

https://usn.ubuntu.com/4578-1/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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