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Total
24 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2023-46846 | 2 Redhat, Squid-cache | 8 Enterprise Linux, Enterprise Linux Eus, Enterprise Linux For Arm 64 and 5 more | 2024-01-09 | N/A | 5.3 MEDIUM |
| 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. | |||||
| CVE-2021-46784 | 2 Debian, Squid-cache | 2 Debian Linux, Squid | 2023-08-08 | N/A | 6.5 MEDIUM |
| In Squid 3.x through 3.5.28, 4.x through 4.17, and 5.x before 5.6, due to improper buffer management, a Denial of Service can occur when processing long Gopher server responses. | |||||
| CVE-2022-41317 | 1 Squid-cache | 1 Squid | 2023-08-08 | N/A | 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-2021-31808 | 4 Debian, Fedoraproject, Netapp and 1 more | 4 Debian Linux, Fedora, Cloud Manager and 1 more | 2022-07-12 | 4.0 MEDIUM | 6.5 MEDIUM |
| 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. | |||||
| CVE-2021-28116 | 2 Fedoraproject, Squid-cache | 2 Fedora, Squid | 2022-06-28 | 4.3 MEDIUM | 5.3 MEDIUM |
| 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. | |||||
| CVE-2021-33620 | 3 Debian, Fedoraproject, Squid-cache | 3 Debian Linux, Fedora, Squid | 2022-06-03 | 4.0 MEDIUM | 6.5 MEDIUM |
| 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. | |||||
| CVE-2019-12529 | 5 Canonical, Debian, Fedoraproject and 2 more | 5 Ubuntu Linux, Debian Linux, Fedora and 2 more | 2022-04-26 | 4.3 MEDIUM | 5.9 MEDIUM |
| An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, and 4.x through 4.7. When Squid is configured to use Basic Authentication, the Proxy-Authorization header is parsed via uudecode. uudecode determines how many bytes will be decoded by iterating over the input and checking its table. The length is then used to start decoding the string. There are no checks to ensure that the length it calculates isn't greater than the input buffer. This leads to adjacent memory being decoded as well. An attacker would not be able to retrieve the decoded data unless the Squid maintainer had configured the display of usernames on error pages. | |||||
| CVE-2021-31806 | 4 Debian, Fedoraproject, Netapp and 1 more | 4 Debian Linux, Fedora, Cloud Manager and 1 more | 2021-09-14 | 4.0 MEDIUM | 6.5 MEDIUM |
| 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. | |||||
| CVE-2021-31807 | 3 Fedoraproject, Netapp, Squid-cache | 3 Fedora, Cloud Manager, Squid | 2021-09-14 | 4.0 MEDIUM | 6.5 MEDIUM |
| 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. | |||||
| CVE-2019-12521 | 4 Canonical, Debian, Opensuse and 1 more | 4 Ubuntu Linux, Debian Linux, Leap and 1 more | 2021-07-21 | 4.3 MEDIUM | 5.9 MEDIUM |
| An issue was discovered in Squid through 4.7. When Squid is parsing ESI, it keeps the ESI elements in ESIContext. ESIContext contains a buffer for holding a stack of ESIElements. When a new ESIElement is parsed, it is added via addStackElement. addStackElement has a check for the number of elements in this buffer, but it's off by 1, leading to a Heap Overflow of 1 element. The overflow is within the same structure so it can't affect adjacent memory blocks, and thus just leads to a crash while processing. | |||||
| CVE-2021-28652 | 2 Debian, Squid-cache | 2 Debian Linux, Squid | 2021-06-14 | 4.0 MEDIUM | 4.9 MEDIUM |
| 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. | |||||
| CVE-2021-28662 | 2 Debian, Squid-cache | 2 Debian Linux, Squid | 2021-06-11 | 4.3 MEDIUM | 6.5 MEDIUM |
| An issue was discovered in Squid 4.x before 4.15 and 5.x before 5.0.6. If a remote server sends a certain response header over HTTP or HTTPS, there is a denial of service. This header can plausibly occur in benign network traffic. | |||||
| CVE-2020-14059 | 1 Squid-cache | 1 Squid | 2021-03-30 | 4.0 MEDIUM | 6.5 MEDIUM |
| An issue was discovered in Squid 5.x before 5.0.3. Due to an Incorrect Synchronization, a Denial of Service can occur when processing objects in an SMP cache because of an Ipc::Mem::PageStack::pop ABA problem during access to the memory page/slot management list. | |||||
| CVE-2020-15810 | 5 Canonical, Debian, Fedoraproject and 2 more | 5 Ubuntu Linux, Debian Linux, Fedora and 2 more | 2021-03-17 | 3.5 LOW | 6.5 MEDIUM |
| 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. | |||||
| CVE-2019-12522 | 1 Squid-cache | 1 Squid | 2021-03-10 | 4.4 MEDIUM | 4.5 MEDIUM |
| 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. | |||||
| CVE-2020-15811 | 5 Canonical, Debian, Fedoraproject and 2 more | 5 Ubuntu Linux, Debian Linux, Fedora and 2 more | 2021-03-04 | 4.0 MEDIUM | 6.5 MEDIUM |
| 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. | |||||
| CVE-2019-18860 | 1 Squid-cache | 1 Squid | 2020-07-22 | 4.3 MEDIUM | 6.1 MEDIUM |
| Squid before 4.9, when certain web browsers are used, mishandles HTML in the host (aka hostname) parameter to cachemgr.cgi. | |||||
| CVE-2019-18678 | 4 Canonical, Debian, Fedoraproject and 1 more | 4 Ubuntu Linux, Debian Linux, Fedora and 1 more | 2020-07-11 | 5.0 MEDIUM | 5.3 MEDIUM |
| An issue was discovered in Squid 3.x and 4.x through 4.8. It allows attackers to smuggle HTTP requests through frontend software to a Squid instance that splits the HTTP Request pipeline differently. The resulting Response messages corrupt caches (between a client and Squid) with attacker-controlled content at arbitrary URLs. Effects are isolated to software between the attacker client and Squid. There are no effects on Squid itself, nor on any upstream servers. The issue is related to a request header containing whitespace between a header name and a colon. | |||||
| CVE-2019-18677 | 3 Canonical, Fedoraproject, Squid-cache | 3 Ubuntu Linux, Fedora, Squid | 2020-07-11 | 5.8 MEDIUM | 6.1 MEDIUM |
| An issue was discovered in Squid 3.x and 4.x through 4.8 when the append_domain setting is used (because the appended characters do not properly interact with hostname length restrictions). Due to incorrect message processing, it can inappropriately redirect traffic to origins it should not be delivered to. | |||||
| CVE-2019-13345 | 2 Debian, Squid-cache | 2 Debian Linux, Squid | 2020-07-11 | 4.3 MEDIUM | 6.1 MEDIUM |
| The cachemgr.cgi web module of Squid through 4.7 has XSS via the user_name or auth parameter. | |||||
| CVE-2018-19132 | 2 Debian, Squid-cache | 2 Debian Linux, Squid | 2020-07-11 | 4.3 MEDIUM | 5.9 MEDIUM |
| Squid before 4.4, when SNMP is enabled, allows a denial of service (Memory Leak) via an SNMP packet. | |||||
| CVE-2018-1172 | 1 Squid-cache | 1 Squid | 2019-10-09 | 4.3 MEDIUM | 5.9 MEDIUM |
| This vulnerability allows remote attackers to deny service on vulnerable installations of The Squid Software Foundation Squid 3.5.27-20180318. Authentication is not required to exploit this vulnerability. The specific flaw exists within ClientRequestContext::sslBumpAccessCheck(). A crafted request can trigger the dereference of a null pointer. An attacker can leverage this vulnerability to create a denial-of-service condition to users of the system. Was ZDI-CAN-6088. | |||||
| CVE-2018-19131 | 1 Squid-cache | 1 Squid | 2018-12-11 | 4.3 MEDIUM | 6.1 MEDIUM |
| Squid before 4.4 has XSS via a crafted X.509 certificate during HTTP(S) error page generation for certificate errors. | |||||
| CVE-2016-2390 | 1 Squid-cache | 1 Squid | 2016-11-28 | 4.3 MEDIUM | 5.9 MEDIUM |
| 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. | |||||