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Fencer Intel
medium 6.5

CVE-2016-2168 json

The req_check_access function in the mod_authz_svn module in the httpd server in Apache Subversion before 1.8.16 and 1.9.x before 1.9.4 all…

published 2016-05-05 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-3256

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
20.7%
EPSS 20.7% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

The req_check_access function in the mod_authz_svn module in the httpd server in Apache Subversion before 1.8.16 and 1.9.x before 1.9.4 allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) via a crafted header in a (1) MOVE or (2) COPY request, involving an authorization check.

Patch / fix

  • subversion Debian 14, Debian 13, Debian 12 1.9.4-1

debian advisories DEBIAN-CVE-2016-2168

  • subversion Ubuntu 14.04 LTS 1.8.8-1ubuntu3.3
  • subversion Ubuntu 16.04 LTS 1.9.3-2ubuntu1.1

ubuntu advisories UBUNTU-CVE-2016-2168

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • subversion SLE Software Development Kit 12 SP3, SLE Software Development Kit 12 SP2 1.8.19-25.3.1
  • subversion Studio Onsite 1.3, SLE Software Development Kit 11 SP4 1.6.17-1.35.1
  • subversion SLE Software Development Kit 12 SP1, SLE Software Development Kit 12 1.8.10-21.1

suse advisories SUSE-SU-2017:2200-1SUSE-SU-2016:1511-1SUSE-SU-2016:1249-1

  • subversion openSUSE Tumbleweed 1.9.5-1.1

opensuse advisories openSUSE-SU-2024:10538-1

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-2016-2168 updated cvss 5.0

subversion: DoS in mod_authz_svn during COPY/MOVE authorization check

  • Red Hat Enterprise Linux 5 subversion Red Hat Enterprise Linux 6 subversion, mod_dav_svn, subversion-kde, subversion-perl, subversion-ruby, subversion-gnome, +2 more Red Hat Enterprise Linux 7 subversion, mod_dav_svn, subversion-kde, subversion-libs, subversion-perl, subversion-ruby, +4 more
    affected: no fix planned “Will not fix”

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

20.69% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P

References

Sources

Fencer Intel 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.