Log in Start free

Vulnerability · Published Jun 30, 2020 · Assigned by mitre

CVE-2020-15049

Critical 9.9

In plain English

A critical-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 5.7% (higher than 93% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.9Critical
Exploit odds (30 days)5.7%top 6.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing "+\ "-" or an uncommon shell whitespace character prefix to the length field-value.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8libecap1.0.1-2.module_el8.6.0+2741+01592ae8ALSA-2020:4743
AlmaLinux:8libecap-devel1.0.1-2.module_el8.6.0+2741+01592ae8ALSA-2020:4743
Alpine:v3.20squid4.12.0-r0ALPINE-CVE-2020-15049
Alpine:v3.21squid4.12.0-r0ALPINE-CVE-2020-15049
Alpine:v3.22squid4.12.0-r0ALPINE-CVE-2020-15049
Alpine:v3.23squid4.12.0-r0ALPINE-CVE-2020-15049
Alpine:v3.24squid4.12.0-r0ALPINE-CVE-2020-15049
Debian:12squid4.12-1DEBIAN-CVE-2020-15049
Debian:13squid4.12-1DEBIAN-CVE-2020-15049
Debian:14squid4.12-1DEBIAN-CVE-2020-15049
Rocky Linux:8libecap0:1.0.1-2.module+el8.4.0+404+316a0dc5RLSA-2020:4743

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References