NA

CVE-2023-46728

Published: 06/11/2023 Updated: 29/12/2023
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 0

Vulnerability Summary

Squid is a caching proxy for the Web. Due to an Improper Validation of Specified Index bug, Squid versions 3.3.0.1 up to and including 5.9 and 6.0 before 6.4 compiled using `--with-openssl` are vulnerable to a Denial of Service attack against SSL Certificate validation. This problem allows a remote server to perform Denial of Service against Squid Proxy by initiating a TLS Handshake with a specially crafted SSL Certificate in a server certificate chain. This attack is limited to HTTPS and SSL-Bump. This bug is fixed in Squid version 6.4. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. Those who you use a prepackaged version of Squid should refer to the package vendor for availability information on updated packages. (CVE-2023-46724) Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid's Gopher gateway. The gopher protocol is always available and enabled in Squid prior to Squid 6.0.1. Responses triggering this bug are possible to be received from any gopher server, even those without malicious intent. Gopher support has been removed in Squid version 6.0.1. Users are advised to upgrade. Users unable to upgrade should reject all gopher URL requests. (CVE-2023-46728)

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Vendor Advisories

Synopsis Important: squid:4 security update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for the squid:4 module is now available for Red Hat Enterprise Linux 8Red Hat Product Security has rated this update a ...
Synopsis Important: squid security update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for squid is now available for Red Hat Enterprise Linux 9Red Hat Product Security has rated this update as having a secu ...
Synopsis Important: squid:4 security update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for the squid:4 module is now available for Red Hat Enterprise Linux 86 Extended Update SupportRed Hat Product Securi ...
Synopsis Important: squid:4 security update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for the squid:4 module is now available for Red Hat Enterprise Linux 82 Advanced Update Support, Red Hat Enterprise Li ...
Synopsis Important: squid:4 security update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for the squid:4 module is now available for Red Hat Enterprise Linux 84 Advanced Mission Critical Update Support, Red ...
Squid is a caching proxy for the Web Due to an Improper Validation of Specified Index bug, Squid versions 3301 through 59 and 60 prior to 64 compiled using `--with-openssl` are vulnerable to a Denial of Service attack against SSL Certificate validation This problem allows a remote server to perform Denial of Service against Squid Proxy by i ...
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid's Gopher gateway The gopher protocol is always available and enabled in Squid prior to Squid 601 Responses triggering this bug are possible to be received from any goph ...