CVE-2020-25704 describes a memory leak vulnerability in the Linux kernel's performance monitoring subsystem, specifically when using PERF_EVENT_IOC_SET_FILTER, affecting Debian and Linux-based systems. This flaw allows a local attacker to exhaust system resources, leading to a denial of service. With a CVSS score of 5.5 (Medium), it requires local access and low attack complexity to achieve high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 5.9CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
5.10CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.10:rc1:*:*:*:*:*:* | ||
5.10CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.10:rc2:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:starwindsoftware:command_center:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
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.
Dec 8, 2020kernel: perf_event_parse_addr_filter memory
Nov 9, 2020