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
02 Description
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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 6.81% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 93.7% of scored records. A rank, not a probability.
- NVD base score
- 6.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2016-05-05 18:00Z10 YR AGO
- Last updated
- 2024-08-05 23:17Z2 YR AGO
- Reserved
- 2016-01-29
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- bfcc6b5c5439edfc523b47103ab57328b8510ffca4a399ab94594b6e8f9dfd55
05 Affected products
06 References
- lists.fedoraproject.orgFEDORA-2016-20cc04ac50http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184545.html
- www.securityfocus.com89417http://www.securityfocus.com/bid/89417
- mail-archives.apache.org[subversion-announce] 20160428 [ANNOUNCE][SECURITY] Apache Subversion 1.8.16 releasedhttp://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgJet+7_MAhomFVOXPgLtewcUw9w=k9zdPCkq5tvPxVMA%40mail.gmail.com%3E
- www.slackware.comSSA:2016-121-01http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.417496
- lists.opensuse.orgopenSUSE-SU-2016:1264http://lists.opensuse.org/opensuse-updates/2016-05/msg00044.html
- mail-archives.apache.org[subversion-announce] 20160428 [ANNOUNCE][SECURITY] Apache Subversion 1.9.4 releasedhttp://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgfn1iKueW51EpmXzXi_URNfGNofZSgOyW1_jnSeNm5DQ%40mail.gmail.com%3E
- lists.opensuse.orgopenSUSE-SU-2016:1263http://lists.opensuse.org/opensuse-updates/2016-05/msg00043.html
- www.debian.orgDSA-3561http://www.debian.org/security/2016/dsa-3561
- www.securitytracker.com1035706http://www.securitytracker.com/id/1035706
- security.gentoo.orgGLSA-201610-05https://security.gentoo.org/glsa/201610-05
- www.oracle.comhttps://www.oracle.com/security-alerts/cpuoct2020.html
- subversion.apache.orghttp://subversion.apache.org/security/CVE-2016-2167-advisory.txt
07 Fixed in
Debian 12
- subversion Fixed in 1.9.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- subversion Fixed in 1.9.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- subversion Fixed in 1.9.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- subversion Fixed in 1.8.8-1ubuntu3.3
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- subversion Fixed in 1.9.3-2ubuntu1.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.