CVE-2020-15810

CVE Details

Release Date:2020-09-02

Description


An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Smuggling attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the proxy cache and any downstream caches with content from an arbitrary source. When configured for relaxed header parsing (the default), Squid relays headers containing whitespace characters to upstream servers. When this occurs as a prefix to a Content-Length header, the frame length specified will be ignored by Squid (allowing for a conflicting length to be used from another Content-Length header) but relayed upstream.

See more information about CVE-2020-15810 from MITRE CVE dictionary and NIST NVD


CVSS v3.0 metrics


NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: 6.5 Base Metrics: AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Access Vector: Network Attack Complexity: Low
Privileges Required: Low User Interaction: None
Scope: Unchanged Confidentiality Impact: None
Integrity Impact: High Availability Impact: None

Errata information


PlatformErrataRelease Date
Oracle Linux version 7 (squid)ELSA-2020-40822020-10-08
Oracle Linux version 8 (libecap)ELSA-2020-36232020-09-04
Oracle Linux version 8 (squid)ELSA-2020-36232020-09-04



This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team

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