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CVE-2020-25704

Good to know:

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Date: December 1, 2020

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.

Language: C

Severity Score

Related Resources (11)

https://nvd.nist.gov/vuln/detail/CVE-2020-25704
https://www.openwall.com/lists/oss-security/2020/11/09/1
https://access.redhat.com/security/cve/CVE-2020-25704
https://security-tracker.debian.org/tracker/CVE-2020-25704
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-25704
https://bugzilla.redhat.com/show_bug.cgi?id=1895961
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7bdb157cdebbf95a1cd94ed2e01b338714075d00
https://www.starwindsoftware.com/security/sw-20220802-0003/
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
https://www.mend.io/vulnerability-database/CVE-2020-25704

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Missing Release of Memory after Effective Lifetime

CWE-401

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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