CVE-2016-2167

The canonicalize_username function in svnserve/cyrus_auth.c in Apache Subversion before 1.8.16 and 1.9.x before 1.9.4, when Cyrus SASL authentication is used, allows remote attackers to authenticate and bypass intended access restrictions via a realm string that is a prefix of an expected repository realm string.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.8 MEDIUM
NETWORK
HIGH
LOW
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 82%
VendorProductVersion
apachesubversion
𝑥
≤ 1.8.15
apachesubversion
1.9.0
apachesubversion
1.9.1
apachesubversion
1.9.2
apachesubversion
1.9.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
subversion
bullseye (security)
1.14.1-3+deb11u1
fixed
bullseye
1.14.1-3+deb11u1
fixed
bookworm
1.14.2-4
fixed
sid
1.14.4-2
fixed
trixie
1.14.4-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
subversion
artful
not-affected
zesty
not-affected
yakkety
not-affected
xenial
Fixed 1.9.3-2ubuntu1.1
released
wily
ignored
trusty
Fixed 1.8.8-1ubuntu3.3
released
precise
ignored
Common Weakness Enumeration
References
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184545.html
http://lists.opensuse.org/opensuse-updates/2016-05/msg00043.html
http://lists.opensuse.org/opensuse-updates/2016-05/msg00044.html
http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgJet+7_MAhomFVOXPgLtewcUw9w=k9zdPCkq5tvPxVMA%40mail.gmail.com%3E
http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgfn1iKueW51EpmXzXi_URNfGNofZSgOyW1_jnSeNm5DQ%40mail.gmail.com%3E
http://subversion.apache.org/security/CVE-2016-2167-advisory.txt
http://www.debian.org/security/2016/dsa-3561
http://www.securityfocus.com/bid/89417
http://www.securitytracker.com/id/1035706
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.417496
https://security.gentoo.org/glsa/201610-05
https://www.oracle.com/security-alerts/cpuoct2020.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184545.html
http://lists.opensuse.org/opensuse-updates/2016-05/msg00043.html
http://lists.opensuse.org/opensuse-updates/2016-05/msg00044.html
http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgJet+7_MAhomFVOXPgLtewcUw9w=k9zdPCkq5tvPxVMA%40mail.gmail.com%3E
http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgfn1iKueW51EpmXzXi_URNfGNofZSgOyW1_jnSeNm5DQ%40mail.gmail.com%3E
http://subversion.apache.org/security/CVE-2016-2167-advisory.txt
http://www.debian.org/security/2016/dsa-3561
http://www.securityfocus.com/bid/89417
http://www.securitytracker.com/id/1035706
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.417496
https://security.gentoo.org/glsa/201610-05
https://www.oracle.com/security-alerts/cpuoct2020.html