VulnerabilityModified
CVE-2020-24394
In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131.
HIGH 7.1EPSS 0.36%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs because the current umask is not considered.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 0.36% probability · 29th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-732
- Affected
- linux/linux kernel · canonical/ubuntu linux · opensuse/leap · oracle/sd-wan edge · starwindsoftware/starwind virtual san
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.htmlThird Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254Issue Tracking, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8Release Notes, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20200904-0003/Third Party Advisory
- https://usn.ubuntu.com/4465-1/Third Party Advisory
- https://usn.ubuntu.com/4483-1/Third Party Advisory
- https://usn.ubuntu.com/4485-1/Third Party Advisory
- https://www.oracle.com/security-alerts/cpuApr2021.htmlPatch, Third Party Advisory
- https://www.starwindsoftware.com/security/sw-20210325-0004/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.htmlThird Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254Issue Tracking, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8Release Notes, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20200904-0003/Third Party Advisory
- https://usn.ubuntu.com/4465-1/Third Party Advisory
- https://usn.ubuntu.com/4483-1/Third Party Advisory
- https://usn.ubuntu.com/4485-1/Third Party Advisory
- https://www.oracle.com/security-alerts/cpuApr2021.htmlPatch, Third Party Advisory
- https://www.starwindsoftware.com/security/sw-20210325-0004/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.