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squid-cache squid vulnerabilities and exploits
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445
VMScore
CVE-2020-8517
An issue exists in Squid prior to 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being ter...
Squid-cache Squid
Opensuse Leap 15.1
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 19.10
570
VMScore
CVE-2019-12523
An issue exists in Squid prior to 4.9. When handling a URN request, a corresponding HTTP request is made. This HTTP request doesn't go through the access checks that incoming HTTP requests go through. This causes all access checks to be bypassed and allows access to restrict...
Squid-cache Squid
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 19.04
Canonical Ubuntu Linux 19.10
Fedoraproject Fedora 30
Fedoraproject Fedora 31
Opensuse Leap 15.0
Debian Debian Linux 9.0
Debian Debian Linux 10.0
668
VMScore
CVE-2019-12526
An issue exists in Squid prior to 4.9. URN response handling in Squid suffers from a heap-based buffer overflow. When receiving data from a remote server in response to an URN request, Squid fails to ensure that the response can fit within the buffer. This leads to attacker contr...
Squid-cache Squid
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 19.04
Canonical Ubuntu Linux 19.10
Fedoraproject Fedora 30
Fedoraproject Fedora 31
Opensuse Leap 15.0
Debian Debian Linux 8.0
Debian Debian Linux 9.0
Debian Debian Linux 10.0
445
VMScore
CVE-2019-18679
An issue exists in Squid 2.x, 3.x, and 4.x up to and including 4.8. Due to incorrect data management, it is vulnerable to information disclosure when processing HTTP Digest Authentication. Nonce tokens contain the raw byte value of a pointer that sits within heap memory allocatio...
Squid-cache Squid 2.7
Squid-cache Squid
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 19.04
Canonical Ubuntu Linux 19.10
Debian Debian Linux 8.0
Fedoraproject Fedora 30
Fedoraproject Fedora 31
445
VMScore
CVE-2019-18676
An issue exists in Squid 3.x and 4.x up to and including 4.8. Due to incorrect input validation, there is a heap-based buffer overflow that can result in Denial of Service to all clients using the proxy. Severity is high due to this vulnerability occurring before normal security ...
Squid-cache Squid
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 19.04
Canonical Ubuntu Linux 19.10
Fedoraproject Fedora 30
Fedoraproject Fedora 31
Debian Debian Linux 9.0
Debian Debian Linux 10.0
516
VMScore
CVE-2019-18677
An issue exists in Squid 3.x and 4.x up to and including 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 origin...
Squid-cache Squid 2.7
Squid-cache Squid
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 19.04
Canonical Ubuntu Linux 19.10
Fedoraproject Fedora 30
Fedoraproject Fedora 31
445
VMScore
CVE-2019-18678
An issue exists in Squid 3.x and 4.x up to and including 4.8. It allows malicious users 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 S...
Squid-cache Squid
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 19.04
Canonical Ubuntu Linux 19.10
Debian Debian Linux 8.0
Fedoraproject Fedora 30
Fedoraproject Fedora 31
445
VMScore
CVE-2019-12854
Due to incorrect string termination, Squid cachemgr.cgi 4.0 up to and including 4.7 may access unallocated memory. On systems with memory access protections, this can cause the CGI process to terminate unexpectedly, resulting in a denial of service for all clients using it.
Squid-cache Squid
Debian Debian Linux 10.0
Fedoraproject Fedora 29
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 19.04
Canonical Ubuntu Linux 19.10
Canonical Ubuntu Linux 16.04
Opensuse Leap 15.0
Opensuse Leap 15.1
668
VMScore
CVE-2019-12525
An issue exists in Squid 3.3.9 up to and including 3.5.28 and 4.x up to and including 4.7. When Squid is configured to use Digest authentication, it parses the header Proxy-Authorization. It searches for certain tokens such as domain, uri, and qop. Squid checks if this token'...
Squid-cache Squid
Debian Debian Linux 8.0
Debian Debian Linux 9.0
Debian Debian Linux 10.0
Opensuse Leap 15.0
Opensuse Leap 15.1
Fedoraproject Fedora 29
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 19.04
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 12.04
606
VMScore
CVE-2019-12527
An issue exists in Squid 4.0.23 up to and including 4.7. When checking Basic Authentication with HttpHeader::getAuth, Squid uses a global buffer to store the decoded data. Squid does not check that the decoded length isn't greater than the buffer, leading to a heap-based buf...
Squid-cache Squid
Fedoraproject Fedora 29
Debian Debian Linux 10.0
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 19.04
Canonical Ubuntu Linux 16.04
Redhat Enterprise Linux 8.0
Redhat Enterprise Linux Eus 8.1
Redhat Enterprise Linux Eus 8.2
Redhat Enterprise Linux Server Tus 8.2
Redhat Enterprise Linux Server Aus 8.2
Redhat Enterprise Linux Server Tus 8.4
Redhat Enterprise Linux Eus 8.4
Redhat Enterprise Linux Server Aus 8.4
Redhat Enterprise Linux Server Aus 8.6
Redhat Enterprise Linux Server Tus 8.6
Redhat Enterprise Linux Eus 8.6
VMScore
CVSSv2
CVSSv3
VMScore
Recommendations:
denial of service
CVE-2024-27371
CVE-2024-20405
CVE-2024-31627
CVE-2024-31625
race condition
CVE-2024-4358
cross-site scripting
CVE-2023-20938
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