Vulnerability in Linux Kernel
CVE-2020-25704
A flaw memory leak in the Linux kernel performance monitoring subsystem was found in the way if using PERF_EVENT_IOC_SET_FILTER. A local user could use this flaw to starve the resources causing denial of service.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (28.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 28.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Linux Kernel — versions 5.10
- Starwindsoftware Command Center
- Starwindsoftware Starwind Hyperconverged Appliance
- Starwindsoftware Starwind San \& Nas — versions v8r12
- Starwindsoftware Starwind Virtual San — versions v8
- Debian Linux — versions 9.0
- Kernel — versions kernel 5.10-rc3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.openwall.com/lists/oss-security/2020/11/09/1 (Mailing List)
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2020/12/msg00015.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/12/msg00027.html (mailing-list, Mailing List, Third Party Advisory)
- www.starwindsoftware.com/security/sw-20220802-0003/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-25704?
- CVE-2020-25704 is a medium-severity vulnerability in Linux Kernel, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.5/10. Published 2020-12-02.
- How severe is CVE-2020-25704?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-25704 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.