PT-2023-6825 · Squid+10 · Squid+11
CVSS v3.1
8.6
Alta
| Vetor | AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Squid versions 3.3.0.1 through 5.9 and 6.0 prior to 6.4 compiled using
--with-opensslDescription
The issue is related to an Improper Validation of Specified Index bug in Squid, which allows a remote server to perform a Denial of Service attack 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.
Recommendations
For Squid versions 3.3.0.1 through 5.9 and 6.0 prior to 6.4, update to Squid version 6.4 or apply patches from Squid's patch archives to fix the issue. If using a prepackaged version of Squid, refer to the package vendor for availability information on updated packages. As a temporary workaround, consider restricting access to HTTPS and SSL-Bump to minimize the risk of exploitation.
Exploit
Correção
DoS
Improper Certificate Validation
Improper Validation of Array Index
Out of bounds Read
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Identificadores relacionados
Produtos afetados
Alt Linux
Almalinux
Centos
Linuxmint
Openssl
Red Hat
Red Os
Rocky Linux
Squid
Squid Cache
Suse
Ubuntu