CVE-2005-0173 in the critical feed json
squid_ldap_auth in Squid 2.5 and earlier allows remote authenticated users to bypass username-based Access Control Lists (ACLs) via a usern…
published 2005-02-06 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-0174
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 31.9%
- EPSS 31.9% chance of exploitation in 30 days, percentile 98%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- squid Debian 14, Debian 13, Debian 12 2.5.7-4
debian advisories DEBIAN-CVE-2005-0173
- squid RHEL 3 7:2.5.STABLE3-6.3E.7
- squid RHEL 4 7:2.5.STABLE6-3.4E.3
red hat advisories RHSA-2005:061RHSA-2005:060
- squid-cache.org/Versions/v2/2.5/bugs/squid-2.5.STABLE7-ldap_spaces.patch patch
- squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-ldap_spaces patch
- distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000923 advisory
- redhat.com/support/errata/RHSA-2005-061.html advisory
- debian.org/security/2005/dsa-667 advisory
- novell.com/linux/security/advisories/2005_06_squid.html advisory
- redhat.com/support/errata/RHSA-2005-060.html advisory
- kb.cert.org/vuls/id/924198 advisory
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2005-0173 updated
security flaw
-
Red Hat Desktop version 3 squid 2.5.STABLE3-6.3E.7 Red Hat Enterprise Linux AS version 3 squid 2.5.STABLE3-6.3E.7fixed: vendor fix RHSA-2005:061
-
Red Hat Enterprise Linux AS version 4 squid 2.5.STABLE6-3.4E.3 Red Hat Enterprise Linux Desktop version 4 squid 2.5.STABLE6-3.4E.3fixed: vendor fix RHSA-2005:060
-
Red Hat Enterprise Linux ES version 3 squid 2.5.STABLE3-6.3E.7fixed: vendor fix RHSA-2005:061
-
Red Hat Enterprise Linux ES version 4 squid 2.5.STABLE6-3.4E.3fixed: vendor fix RHSA-2005:060
-
Red Hat Enterprise Linux WS version 3 squid 2.5.STABLE3-6.3E.7fixed: vendor fix RHSA-2005:061
-
Red Hat Enterprise Linux WS version 4 squid 2.5.STABLE6-3.4E.3fixed: vendor fix RHSA-2005:060
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
31.94% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
References
-
distro.conectiva.com.br
/atualizacoes/?id=a&anuncio=000923
vendor-advisory, patch
-
redhat.com
/support/errata/RHSA-2005-061.html
vendor-advisory, patch
-
debian.org
/security/2005/dsa-667
vendor-advisory, patch
-
novell.com
/linux/security/advisories/2005_06_squid.html
vendor-advisory, patch
-
redhat.com
/support/errata/RHSA-2005-060.html
vendor-advisory, patch
-
kb.cert.org
/vuls/id/924198
third-party-advisory, patch, us-government-resource
-
squid-cache.org
/Versions/v2/2.5/bugs/squid-2.5.STABLE7-ldap_spaces.patch
patch
-
squid-cache.org
/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-ldap_spaces
patch
-
fedoranews.org
/updates/FEDORA--.shtml
vendor-advisory
-
mandriva.com
/security/advisories?name=MDKSA-2005:034
vendor-advisory
-
securityfocus.com
/bid/12431
vdb-entry
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10251
vdb-entry, signature
-
marc.info
/?l=bugtraq&m=110780531820947&w=2
mailing-list
- squid-cache.org /bugs/show_bug.cgi?id=1187
Sources
- CVE List CVE-2005-0173
- NVD CVE-2005-0173
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.