Medium severity · published Dec 2, 2020
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
5.5
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
through 5.9; 5.10; 5.10 · source: NVD
CC
Command Center · Starwindsoftware
All versions, or not specified · source: NVD
DL
Debian Linux · Debian
9.0 · source: NVD
SH
Starwind Hyperconverged Appliance · Starwindsoftware
All versions, or not specified · source: NVD
SS
Starwind San & Nas · Starwindsoftware
v8r12 · source: NVD
SV
Starwind Virtual San · Starwindsoftware
v8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-25704
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-25704
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1895961
Patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7bdb157cdebbf95a1cd94ed2e01b338714075d00
Mailing List
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
Mailing List
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
Mailing List
https://www.openwall.com/lists/oss-security/2020/11/09/1
Third Party Advisory
https://www.starwindsoftware.com/security/sw-20220802-0003/
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