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CVSS: 5.0EPSS: 95%CPEs: 59EXPL: 0

Squid 2.5.STABLE8 and earlier allows remote attackers to cause a denial of service (crash) via certain DNS responses regarding (1) Fully Qualified Domain Names (FQDN) in fqdncache.c or (2) IP addresses in ipcache.c, which trigger an assertion failure. • http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000931 http://fedoranews.org/updates/FEDORA--.shtml http://marc.info/?l=bugtraq&m=110901183320453&w=2 http://secunia.com/advisories/14271 http://www.debian.org/security/2005/dsa-688 http://www.gentoo.org/security/en/glsa/glsa-200502-25.xml http://www.mandriva.com/security/advisories?name=MDKSA-2005:047 http://www.redhat.com/support/errata/RHSA-2005-173.html http://www.redhat.com/support/errata/RHSA-2005- •

CVSS: 5.0EPSS: 96%CPEs: 7EXPL: 0

The httpProcessReplyHeader function in http.c for Squid 2.5-STABLE7 and earlier does not properly set the debug context when it is handling "oversized" HTTP reply headers, which might allow remote attackers to poison the cache or bypass access controls based on header size. • http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000931 http://fedoranews.org/updates/FEDORA--.shtml http://secunia.com/advisories/14091 http://www.kb.cert.org/vuls/id/823350 http://www.novell.com/linux/security/advisories/2005_06_squid.html http://www.redhat.com/support/errata/RHSA-2005-060.html http://www.redhat.com/support/errata/RHSA-2005-061.html http://www.securityfocus.com/bid/12412 http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2&# •

CVSS: 10.0EPSS: 0%CPEs: 38EXPL: 0

Squid 2.5, when processing the configuration file, parses empty Access Control Lists (ACLs), including proxy_auth ACLs without defined auth schemes, in a way that effectively removes arguments, which could allow remote attackers to bypass intended ACLs if the administrator ignores the parser warnings. • http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000923 http://fedoranews.org/updates/FEDORA--.shtml http://marc.info/?l=bugtraq&m=110901183320453&w=2 http://www.debian.org/security/2005/dsa-667 http://www.kb.cert.org/vuls/id/260421 http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-empty_acls http://www.squid-cache.org/Versions/v2/2.5/bugs/squid-2.5.STABLE7-empty_acls.patch http://www.squid-cache.org/bugs/show_bug.cgi&# •

CVSS: 7.5EPSS: 1%CPEs: 38EXPL: 0

squid_ldap_auth in Squid 2.5 and earlier allows remote authenticated users to bypass username-based Access Control Lists (ACLs) via a username with a space at the beginning or end, which is ignored by the LDAP server. • http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000923 http://fedoranews.org/updates/FEDORA--.shtml http://marc.info/?l=bugtraq&m=110780531820947&w=2 http://www.debian.org/security/2005/dsa-667 http://www.kb.cert.org/vuls/id/924198 http://www.mandriva.com/security/advisories?name=MDKSA-2005:034 http://www.novell.com/linux/security/advisories/2005_06_squid.html http://www.redhat.com/support/errata/RHSA-2005-060.html http://www.redhat.com/support/errat •

CVSS: 5.0EPSS: 97%CPEs: 16EXPL: 0

Squid 2.5 up to 2.5.STABLE7 allows remote attackers to poison the cache or conduct certain attacks via headers that do not follow the HTTP specification, including (1) multiple Content-Length headers, (2) carriage return (CR) characters that are not part of a CRLF pair, and (3) header names containing whitespace characters. • http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000931 http://fedoranews.org/updates/FEDORA--.shtml http://marc.info/?l=bugtraq&m=110780531820947&w=2 http://www.kb.cert.org/vuls/id/768702 http://www.mandriva.com/security/advisories?name=MDKSA-2005:034 http://www.novell.com/linux/security/advisories/2005_06_squid.html http://www.redhat.com/archives/fedora-announce-list/2005-May/msg00025.html http://www.redhat.com/support/errata/RHSA-2005-060.html http:/ •