CVE-2021-31808

Medium

Description

An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP Range request to trigger this.

SeverityMedium

CVSS6.5

Exploit probability—

Product

Squid

PublishedMay 27, 2021

First seenMay 27, 2021

How to fix

Update

squid-cache squid4.15, 5.0.6 or later

Vendor advisories

debian.org/security/2021/dsa-4924
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/

Affected products

Product	Affected versions	Fixed in
squid-cache squid	v < 4.15, 5.0 ≤ v < 5.0.6	4.15, 5.0.6
debian debian_linux	9.0, 10.0	—
netapp cloud_manager	No range specified	—
fedoraproject fedora	33, 34	—

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