Summary
Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.
Security Fix(es):
* SQUID-2023:3 squid: Denial of Service in HTTP Digest Authentication (CVE-2023-46847)
* SQUID-2023:1 squid: Request/Response smuggling in HTTP/1.1 and ICAP (CVE-2023-46846)
* SQUID-2023:5 squid: denial of Service in FTP (CVE-2023-46848)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 9 | squid | 7:5.5-5.el9_2.1 |
Vulnerabilities 3
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Critical 9.3
Squid: request/response smuggling in http/1.1 and icap
SQUID is vulnerable to HTTP request smuggling, caused by chunked decoder lenience, allows a remote attacker to perform Request/Response smuggling past firewall and frontend security systems.
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High 8.6CVE-2023-46847 EPSS 79%
Squid: denial of service in http digest authentication
Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.
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High 8.6CVE-2023-46848 EPSS 11%
Squid: denial of service in ftp
Squid is vulnerable to Denial of Service, where a remote attacker can perform DoS by sending ftp:// URLs in HTTP Request messages or constructing ftp:// URLs from FTP Native input.
References
-
report
https://access.redhat.com/security/cve/CVE-2023-46846
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report
https://access.redhat.com/security/cve/CVE-2023-46847
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report
https://access.redhat.com/security/cve/CVE-2023-46848
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report
https://bugzilla.redhat.com/2245910
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report
https://bugzilla.redhat.com/2245916
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report
https://bugzilla.redhat.com/2245919
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advisory
https://errata.almalinux.org/9/ALSA-2023-6266.html