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CVE-2021-28116

Status Candidate

Overview

Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows information disclosure because of an out-of-bounds read in WCCP protocol data. This can be leveraged as part of a chain for remote code execution as nobody.

Related Files

Debian Security Advisory 5171-1
Posted Jun 28, 2022
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5171-1 - Multiple security issues were discovered in the Squid proxy caching server.

tags | advisory
systems | linux, debian
advisories | CVE-2021-28116, CVE-2021-46784
SHA-256 | 6914ec792d5e2d459734b0e281bf0351dd12d3bb469796cfef359da197d04493
Red Hat Security Advisory 2022-1939-01
Posted May 11, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1939-01 - Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. Issues addressed include information leakage and out of bounds read vulnerabilities.

tags | advisory, web, vulnerability
systems | linux, redhat
advisories | CVE-2021-28116
SHA-256 | 41a80cc9e939c585374c94ae921f8f1469d1f146bce66ccf8f60af916b8e75e0
Ubuntu Security Notice USN-5104-1
Posted Oct 6, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5104-1 - Lyu discovered that Squid incorrectly handled WCCP protocol data. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service, or possibly obtain sensitive information.

tags | advisory, remote, denial of service, protocol
systems | linux, ubuntu
advisories | CVE-2021-28116
SHA-256 | a0d7ec9df6ae11202d23dfdfcf1631d3d993cf09b9b2a709ae3213b3d302b0c9
Gentoo Linux Security Advisory 202105-14
Posted May 26, 2021
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202105-14 - Multiple vulnerabilities have been found in Squid, the worst of which could result in a Denial of Service condition. Versions less than 4.15 are affected.

tags | advisory, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2020-25097, CVE-2021-28116, CVE-2021-28651, CVE-2021-28652, CVE-2021-28662, CVE-2021-31806, CVE-2021-31807, CVE-2021-31808
SHA-256 | f90ca34e9e31fae3683aafe918e223a86b8b36eac92a681b26440c11aba9310a
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