Search Results (Refine Search)
- Results Type: Overview
- Keyword (text search): cpe:2.3:a:squid-cache:squid:2.5.stable2:*:*:*:*:*:*:*
- CPE Name Search: true
Vuln ID | Summary | CVSS Severity |
---|---|---|
CVE-2023-49286 |
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Incorrect Check of Function Return Value bug Squid is vulnerable to a Denial of Service attack against its Helper process management. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability. Published: December 04, 2023; 6:15:27 PM -0500 |
V4.0:(not available) V3.1: 7.5 HIGH V2.0:(not available) |
CVE-2023-49285 |
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Buffer Overread bug Squid is vulnerable to a Denial of Service attack against Squid HTTP Message processing. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability. Published: December 04, 2023; 6:15:27 PM -0500 |
V4.0:(not available) V3.1: 7.5 HIGH V2.0:(not available) |
CVE-2023-46728 |
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. Published: November 06, 2023; 1:15:08 PM -0500 |
V4.0:(not available) V3.1: 7.5 HIGH V2.0:(not available) |
CVE-2023-5824 |
Squid is vulnerable to Denial of Service attack against HTTP and HTTPS clients due to an Improper Handling of Structural Elements bug. Published: November 03, 2023; 4:15:08 AM -0400 |
V4.0:(not available) V3.1: 7.5 HIGH V2.0:(not available) |
CVE-2022-41318 |
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. Published: December 25, 2022; 2:15:10 PM -0500 |
V4.0:(not available) V3.1: 8.6 HIGH V2.0:(not available) |
CVE-2021-31807 |
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. An integer overflow problem allows a remote server to achieve Denial of Service when delivering responses to HTTP Range requests. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent. Published: June 08, 2021; 4:15:09 PM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 4.0 MEDIUM |
CVE-2021-33620 |
Squid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service (affecting availability to all clients) via an HTTP response. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent by the server. Published: May 28, 2021; 8:15:07 AM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 4.0 MEDIUM |
CVE-2021-31808 |
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP Range request to trigger this. Published: May 27, 2021; 10:15:07 AM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 4.0 MEDIUM |
CVE-2021-31806 |
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a memory-management bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy) via HTTP Range request processing. Published: May 27, 2021; 9:15:08 AM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 4.0 MEDIUM |
CVE-2021-28652 |
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This attack is limited to clients with Cache Manager API access privilege. Published: May 27, 2021; 8:15:08 AM -0400 |
V4.0:(not available) V3.1: 4.9 MEDIUM V2.0: 4.0 MEDIUM |
CVE-2021-28651 |
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of memory consumption. Published: May 27, 2021; 8:15:08 AM -0400 |
V4.0:(not available) V3.1: 7.5 HIGH V2.0: 5.0 MEDIUM |
CVE-2020-25097 |
An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the security controls. This occurs for certain uri_whitespace configuration settings. Published: March 19, 2021; 1:15:12 AM -0400 |
V4.0:(not available) V3.1: 8.6 HIGH V2.0: 5.0 MEDIUM |
CVE-2021-28116 |
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. Published: March 09, 2021; 5:15:12 PM -0500 |
V4.0:(not available) V3.1: 5.3 MEDIUM V2.0: 4.3 MEDIUM |
CVE-2020-15811 |
An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Splitting attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the browser cache and any downstream caches with content from an arbitrary source. Squid uses a string search instead of parsing the Transfer-Encoding header to find chunked encoding. This allows an attacker to hide a second request inside Transfer-Encoding: it is interpreted by Squid as chunked and split out into a second request delivered upstream. Squid will then deliver two distinct responses to the client, corrupting any downstream caches. Published: September 02, 2020; 1:15:11 PM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 4.0 MEDIUM |
CVE-2020-15810 |
An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Smuggling attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the proxy cache and any downstream caches with content from an arbitrary source. When configured for relaxed header parsing (the default), Squid relays headers containing whitespace characters to upstream servers. When this occurs as a prefix to a Content-Length header, the frame length specified will be ignored by Squid (allowing for a conflicting length to be used from another Content-Length header) but relayed upstream. Published: September 02, 2020; 1:15:11 PM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 3.5 LOW |
CVE-2020-15049 |
An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing "+\ "-" or an uncommon shell whitespace character prefix to the length field-value. Published: June 30, 2020; 2:15:12 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.5 MEDIUM |
CVE-2019-12520 |
An issue was discovered in Squid through 4.7 and 5. When receiving a request, Squid checks its cache to see if it can serve up a response. It does this by making a MD5 hash of the absolute URL of the request. If found, it servers the request. The absolute URL can include the decoded UserInfo (username and password) for certain protocols. This decoded info is prepended to the domain. This allows an attacker to provide a username that has special characters to delimit the domain, and treat the rest of the URL as a path or query string. An attacker could first make a request to their domain using an encoded username, then when a request for the target domain comes in that decodes to the exact URL, it will serve the attacker's HTML instead of the real HTML. On Squid servers that also act as reverse proxies, this allows an attacker to gain access to features that only reverse proxies can use, such as ESI. Published: April 15, 2020; 4:15:13 PM -0400 |
V4.0:(not available) V3.1: 7.5 HIGH V2.0: 5.0 MEDIUM |
CVE-2019-12524 |
An issue was discovered in Squid through 4.7. When handling requests from users, Squid checks its rules to see if the request should be denied. Squid by default comes with rules to block access to the Cache Manager, which serves detailed server information meant for the maintainer. This rule is implemented via url_regex. The handler for url_regex rules URL decodes an incoming request. This allows an attacker to encode their URL to bypass the url_regex check, and gain access to the blocked resource. Published: April 15, 2020; 3:15:12 PM -0400 |
V4.0:(not available) V3.1: 9.8 CRITICAL V2.0: 7.5 HIGH |
CVE-2019-12522 |
An issue was discovered in Squid through 4.7. When Squid is run as root, it spawns its child processes as a lesser user, by default the user nobody. This is done via the leave_suid call. leave_suid leaves the Saved UID as 0. This makes it trivial for an attacker who has compromised the child process to escalate their privileges back to root. Published: April 15, 2020; 3:15:12 PM -0400 |
V4.0:(not available) V3.1: 4.5 MEDIUM V2.0: 4.4 MEDIUM |
CVE-2019-18860 |
Squid before 4.9, when certain web browsers are used, mishandles HTML in the host (aka hostname) parameter to cachemgr.cgi. Published: March 20, 2020; 5:15:16 PM -0400 |
V4.0:(not available) V3.1: 6.1 MEDIUM V2.0: 4.3 MEDIUM |