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Squid vulnerabilities

Description

Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly handled certain URN requests. A remote attacker could possibly use this issue to bypass access checks and access restricted servers. This issue was only addressed in Ubuntu 19.04 and Ubuntu 19.10. (CVE-2019-12523) Jeriko One discovered that Squid incorrectly handed URN responses. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2019-12526) Alex Rousskov discovered that Squid incorrectly handled certain strings. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. This issue only affected Ubuntu 19.04. (CVE-2019-12854) Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly handled certain input. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue was only addressed in Ubuntu 19.04 and Ubuntu 19.10. (CVE-2019-18676) Kristoffer Danielsson discovered that Squid incorrectly handled certain messages. This issue could result in traffic being redirected to origins it should not be delivered to. (CVE-2019-18677) Régis Leroy discovered that Squid incorrectly handled certain HTTP request headers. A remote attacker could use this to smuggle HTTP requests and corrupt caches with arbitrary content. (CVE-2019-18678) David Fifield discovered that Squid incorrectly handled HTTP Digest Authentication. A remote attacker could possibly use this issue to obtain pointer contents and bypass ASLR protections. (CVE-2019-18679)


Affected Package


OS OS Version Package Name Package Version
Ubuntu 19.10 squid 4.8-1ubuntu2.1
Ubuntu 19.04 squid 4.4-1ubuntu2.3
Ubuntu 18.04 squid3 3.5.27-1ubuntu1.4
Ubuntu 18.04 squid 3.5.27-1ubuntu1.4
Ubuntu 18.04 squid-cgi 3.5.27-1ubuntu1.4
Ubuntu 18.04 squid-common 3.5.27-1ubuntu1.4
Ubuntu 18.04 squid-dbg 3.5.27-1ubuntu1.4
Ubuntu 18.04 squid-purge 3.5.27-1ubuntu1.4
Ubuntu 18.04 squidclient 3.5.27-1ubuntu1.4
Ubuntu 16.04 squid3 3.5.12-1ubuntu7.9
Ubuntu 16.04 squid 3.5.12-1ubuntu7.9
Ubuntu 16.04 squid-cgi 3.5.12-1ubuntu7.9
Ubuntu 16.04 squid-cgi-dbgsym 3.5.12-1ubuntu7.9
Ubuntu 16.04 squid-common 3.5.12-1ubuntu7.9
Ubuntu 16.04 squid-dbg 3.5.12-1ubuntu7.9
Ubuntu 16.04 squid-dbgsym 3.5.12-1ubuntu7.9
Ubuntu 16.04 squid-purge 3.5.12-1ubuntu7.9
Ubuntu 16.04 squid-purge-dbgsym 3.5.12-1ubuntu7.9
Ubuntu 16.04 squidclient 3.5.12-1ubuntu7.9
Ubuntu 16.04 squidclient-dbgsym 3.5.12-1ubuntu7.9

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