Log in Start free

Vulnerability · Published May 27, 2021 · Assigned by mitre

CVE-2021-28662

Medium 6.5

In plain English

A medium-severity security flaw in the libecap package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 71.8% (higher than 99.4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)71.8%top 0.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

An issue was discovered in Squid 4.x before 4.15 and 5.x before 5.0.6. If a remote server sends a certain response header over HTTP or HTTPS, there is a denial of service. This header can plausibly occur in benign network traffic.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8libecap1.0.1-2.module_el8.6.0+2741+01592ae8ALSA-2021:4292
AlmaLinux:8libecap-devel1.0.1-2.module_el8.6.0+2741+01592ae8ALSA-2021:4292
AlmaLinux:8squid7:4.15-3.module_el8.6.0+3010+383bc947.1ALSA-2021:4292
Alpine:v3.20squid5.0.6-r0ALPINE-CVE-2021-28662
Alpine:v3.21squid5.0.6-r0ALPINE-CVE-2021-28662
Alpine:v3.22squid5.0.6-r0ALPINE-CVE-2021-28662
Alpine:v3.23squid5.0.6-r0ALPINE-CVE-2021-28662
Alpine:v3.24squid5.0.6-r0ALPINE-CVE-2021-28662
Debian:12squid4.13-10DEBIAN-CVE-2021-28662
Debian:13squid4.13-10DEBIAN-CVE-2021-28662
Debian:14squid4.13-10DEBIAN-CVE-2021-28662
Rocky Linux:8libecap0:1.0.1-2.module+el8.4.0+404+316a0dc5RLSA-2021:4292
Rocky Linux:8squid7:4.15-1.module+el8.5.0+705+218dec94RLSA-2021:4292

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References