Vulnerability in Linux Kernel
CVE-2020-35513
A flaw incorrect umask during file or directory modification in the Linux kernel NFS (network file system) functionality was found in the way user create and delete object using NFSv4.2 or newer if both simultaneously accessing the NFS by the other process that is not using new NFSv4.2. A user with access to the NFS could use this flaw to starve the resources causing denial of service.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.013 (71.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Linux Kernel — versions 4.2
- Red Hat Enterprise Linux — versions 7.0
- Kernel — versions before kernel 4.17-rc1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- patchwork.kernel.org/project/linux-nfs/patch/20180403203916.GH20297@fieldses.or…
Frequently asked questions
- What is CVE-2020-35513?
- CVE-2020-35513 is a medium-severity vulnerability in Linux Kernel, classified under Privilege Dropping / Lowering Errors. CVSS score: 4.9/10. Published 2021-01-26.
- How severe is CVE-2020-35513?
- Medium severity. CVSS v3 base score is 4.9 out of 10.
- Is CVE-2020-35513 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.