CVE-2021-28652 describes a Denial of Service (DoS) vulnerability in Squid versions before 4.15 and 5.x before 5.0.6, affecting various Debian and Fedora distributions. This flaw, due to incorrect parser validation, allows a trusted client with Cache Manager API access to trigger memory leaks, eventually leading to a DoS. Rated as Medium severity (CVSS 4.9), the attack requires high privileges and has a high impact on availability, but no impact on confidentiality or integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.0, < 4.15CPE matchmatch criteria | cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* | ||
>= 5.0, < 5.0.6CPE matchmatch criteria | cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | ||
10.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | ||
33CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 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.