Filtered by vendor Squid-cache Subscriptions
Filtered by product Squid Subscriptions
Total 109 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2024-23638 2 Redhat, Squid-cache 2 Enterprise Linux, Squid 2025-06-17 6.5 Medium
Squid is a caching proxy for the Web. Due to an expired pointer reference bug, Squid prior to version 6.6 is vulnerable to a Denial of Service attack against Cache Manager error responses. This problem allows a trusted client to perform Denial of Service when generating error pages for Client Manager reports. Squid older than 5.0.5 have not been tested and should be assumed to be vulnerable. All Squid-5.x up to and including 5.9 are vulnerable. All Squid-6.x up to and including 6.5 are vulnerable. This bug is fixed by Squid version 6.6. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. As a workaround, prevent access to Cache Manager using Squid's main access control: `http_access deny manager`.
CVE-2023-50269 2 Redhat, Squid-cache 6 Enterprise Linux, Rhel Aus, Rhel E4s and 3 more 2025-05-21 8.6 High
Squid is a caching proxy for the Web. Due to an Uncontrolled Recursion bug in versions 2.6 through 2.7.STABLE9, versions 3.1 through 5.9, and versions 6.0.1 through 6.5, Squid may be vulnerable to a Denial of Service attack against HTTP Request parsing. This problem allows a remote client to perform Denial of Service attack by sending a large X-Forwarded-For header when the follow_x_forwarded_for feature is configured. This bug is fixed by Squid version 6.6. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives.
CVE-2016-10002 3 Debian, Redhat, Squid-cache 3 Debian Linux, Enterprise Linux, Squid 2025-04-20 N/A
Incorrect processing of responses to If-None-Modified HTTP conditional requests in Squid HTTP Proxy 3.1.10 through 3.1.23, 3.2.0.3 through 3.5.22, and 4.0.1 through 4.0.16 leads to client-specific Cookie data being leaked to other clients. Attack requests can easily be crafted by a client to probe a cache for this information.
CVE-2016-10003 1 Squid-cache 1 Squid 2025-04-20 7.5 High
Incorrect HTTP Request header comparison in Squid HTTP Proxy 3.5.0.1 through 3.5.22, and 4.0.1 through 4.0.16 results in Collapsed Forwarding feature mistakenly identifying some private responses as being suitable for delivery to multiple clients.
CVE-2022-41318 2 Redhat, Squid-cache 4 Enterprise Linux, Rhel E4s, Rhel Eus and 1 more 2025-04-14 8.6 High
A buffer over-read was discovered in libntlmauth in Squid 2.5 through 5.6. Due to incorrect integer-overflow protection, the SSPI and SMB authentication helpers are vulnerable to reading unintended memory locations. In some configurations, cleartext credentials from these locations are sent to a client. This is fixed in 5.7.
CVE-2022-41317 1 Squid-cache 1 Squid 2025-04-14 6.5 Medium
An issue was discovered in Squid 4.9 through 4.17 and 5.0.6 through 5.6. Due to inconsistent handling of internal URIs, there can be Exposure of Sensitive Information about clients using the proxy via an HTTPS request to an internal cache manager URL. This is fixed in 5.7.
CVE-2016-2390 1 Squid-cache 1 Squid 2025-04-12 N/A
The FwdState::connectedToPeer method in FwdState.cc in Squid before 3.5.14 and 4.0.x before 4.0.6 does not properly handle SSL handshake errors when built with the --with-openssl option, which allows remote attackers to cause a denial of service (application crash) via a plaintext HTTP message.
CVE-2014-7142 3 Canonical, Oracle, Squid-cache 3 Ubuntu Linux, Solaris, Squid 2025-04-12 N/A
The pinger in Squid 3.x before 3.4.8 allows remote attackers to obtain sensitive information or cause a denial of service (crash) via a crafted (1) ICMP or (2) ICMP6 packet size.
CVE-2016-4053 4 Canonical, Oracle, Redhat and 1 more 4 Ubuntu Linux, Linux, Enterprise Linux and 1 more 2025-04-12 N/A
Squid 3.x before 3.5.17 and 4.x before 4.0.9 allow remote attackers to obtain sensitive stack layout information via crafted Edge Side Includes (ESI) responses, related to incorrect use of assert and compiler optimization.
CVE-2016-4051 4 Canonical, Oracle, Redhat and 1 more 4 Ubuntu Linux, Linux, Enterprise Linux and 1 more 2025-04-12 N/A
Buffer overflow in cachemgr.cgi in Squid 2.x, 3.x before 3.5.17, and 4.x before 4.0.9 might allow remote attackers to cause a denial of service or execute arbitrary code by seeding manager reports with crafted data.
CVE-2016-3947 2 Canonical, Squid-cache 2 Ubuntu Linux, Squid 2025-04-12 N/A
Heap-based buffer overflow in the Icmp6::Recv function in icmp/Icmp6.cc in the pinger utility in Squid before 3.5.16 and 4.x before 4.0.8 allows remote servers to cause a denial of service (performance degradation or transition failures) or write sensitive information to log files via an ICMPv6 packet.
CVE-2014-9749 2 Opensuse, Squid-cache 2 Opensuse, Squid 2025-04-12 N/A
Squid 3.4.4 through 3.4.11 and 3.5.0.1 through 3.5.1, when Digest authentication is used, allow remote authenticated users to retain access by leveraging a stale nonce, aka "Nonce replay vulnerability."
CVE-2014-3609 2 Redhat, Squid-cache 2 Enterprise Linux, Squid 2025-04-12 N/A
HttpHdrRange.cc in Squid 3.x before 3.3.12 and 3.4.x before 3.4.6 allows remote attackers to cause a denial of service (crash) via a request with crafted "Range headers with unidentifiable byte-range values."
CVE-2016-4554 4 Canonical, Oracle, Redhat and 1 more 4 Ubuntu Linux, Linux, Enterprise Linux and 1 more 2025-04-12 N/A
mime_header.cc in Squid before 3.5.18 allows remote attackers to bypass intended same-origin restrictions and possibly conduct cache-poisoning attacks via a crafted HTTP Host header, aka a "header smuggling" issue.
CVE-2016-2570 2 Redhat, Squid-cache 2 Enterprise Linux, Squid 2025-04-12 N/A
The Edge Side Includes (ESI) parser in Squid 3.x before 3.5.15 and 4.x before 4.0.7 does not check buffer limits during XML parsing, which allows remote HTTP servers to cause a denial of service (assertion failure and daemon exit) via a crafted XML document, related to esi/CustomParser.cc and esi/CustomParser.h.
CVE-2016-2572 2 Redhat, Squid-cache 2 Enterprise Linux, Squid 2025-04-12 N/A
http.cc in Squid 4.x before 4.0.7 relies on the HTTP status code after a response-parsing failure, which allows remote HTTP servers to cause a denial of service (assertion failure and daemon exit) via a malformed response.
CVE-2016-4556 4 Canonical, Oracle, Redhat and 1 more 4 Ubuntu Linux, Linux, Enterprise Linux and 1 more 2025-04-12 N/A
Double free vulnerability in Esi.cc in Squid 3.x before 3.5.18 and 4.x before 4.0.10 allows remote servers to cause a denial of service (crash) via a crafted Edge Side Includes (ESI) response.
CVE-2016-3948 2 Redhat, Squid-cache 2 Enterprise Linux, Squid 2025-04-12 N/A
Squid 3.x before 3.5.16 and 4.x before 4.0.8 improperly perform bounds checking, which allows remote attackers to cause a denial of service via a crafted HTTP response, related to Vary headers.
CVE-2015-5400 3 Debian, Fedoraproject, Squid-cache 3 Debian Linux, Fedora, Squid 2025-04-12 N/A
Squid before 3.5.6 does not properly handle CONNECT method peer responses when configured with cache_peer, which allows remote attackers to bypass intended restrictions and gain access to a backend proxy via a CONNECT request.
CVE-2016-4555 4 Canonical, Oracle, Redhat and 1 more 4 Ubuntu Linux, Linux, Enterprise Linux and 1 more 2025-04-12 N/A
client_side_request.cc in Squid 3.x before 3.5.18 and 4.x before 4.0.10 allows remote servers to cause a denial of service (crash) via crafted Edge Side Includes (ESI) responses.