MEDIUM
subversion: DoS in mod_authz_svn during COPY/MOVE authorization check
Published May 5, 2016
6.5
MEDIUMCVSS 3.0
EPSS 19.93%
Description
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.
Affected products
No data.
OR
- ≤ 1.8.15
- 1.9.0
- 1.9.1
- 1.9.2
- 1.9.3
No data.
Red Hat Enterprise Linux 5
subversion
Will not fix
Red Hat Enterprise Linux 6
subversion
Will not fix
Red Hat Enterprise Linux 7
subversion
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | subversion | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | subversion | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | subversion | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
6.5 MEDIUM NVD
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
4.0 MEDIUM NVD
AV:N/AC:L/Au:S/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
19.93% 0.19928
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.19928
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (40 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 19.93% (0.19928) | 97.36th | v5 (v2026.06.15) |
| Aug 21, 2026 | 20.69% (0.20686) | 97.34th | v5 (v2026.06.15) |
| Jun 15, 2026 | 19.63% (0.19628) | 97.04th | v5 (v2026.06.15) |
| Apr 2, 2026 | 7.36% (0.07364) | 91.68th | v4 (v2025.03.14) |
| Mar 4, 2026 | 8.96% (0.08959) | 92.45th | v4 (v2025.03.14) |
| Mar 1, 2026 | 2.29% (0.02293) | 84.52th | v4 (v2025.03.14) |
| Feb 4, 2026 | 8.96% (0.08959) | 92.39th | v4 (v2025.03.14) |
| Feb 1, 2026 | 2.29% (0.02293) | 84.42th | v4 (v2025.03.14) |
| Jan 30, 2026 | 8.96% (0.08959) | 92.38th | v4 (v2025.03.14) |
| Jan 4, 2026 | 7.04% (0.07044) | 91.20th | v4 (v2025.03.14) |
| Jan 1, 2026 | 1.77% (0.01766) | 82.25th | v4 (v2025.03.14) |
| Dec 4, 2025 | 7.04% (0.07044) | 91.13th | v4 (v2025.03.14) |
| Dec 1, 2025 | 1.77% (0.01766) | 82.13th | v4 (v2025.03.14) |
| Nov 4, 2025 | 7.04% (0.07044) | 91.08th | v4 (v2025.03.14) |
| Nov 1, 2025 | 1.77% (0.01766) | 82.08th | v4 (v2025.03.14) |
| Oct 4, 2025 | 7.04% (0.07044) | 91.12th | v4 (v2025.03.14) |
| Oct 1, 2025 | 1.77% (0.01766) | 82.03th | v4 (v2025.03.14) |
| Sep 4, 2025 | 6.66% (0.06663) | 90.87th | v4 (v2025.03.14) |
| Sep 1, 2025 | 1.08% (0.01082) | 77.09th | v4 (v2025.03.14) |
| Aug 4, 2025 | 6.66% (0.06663) | 90.84th | v4 (v2025.03.14) |
| Aug 1, 2025 | 1.08% (0.01082) | 77.03th | v4 (v2025.03.14) |
| Jul 30, 2025 | 6.66% (0.06663) | 90.83th | v4 (v2025.03.14) |
| Jul 4, 2025 | 10.05% (0.10047) | 92.71th | v4 (v2025.03.14) |
| Jul 1, 2025 | 1.70% (0.01700) | 81.51th | v4 (v2025.03.14) |
| Jun 19, 2025 | 10.05% (0.10047) | 92.68th | v4 (v2025.03.14) |
| Jun 4, 2025 | 12.64% (0.12639) | 93.59th | v4 (v2025.03.14) |
| Jun 1, 2025 | 2.21% (0.02208) | 83.70th | v4 (v2025.03.14) |
| May 4, 2025 | 12.64% (0.12639) | 93.55th | v4 (v2025.03.14) |
| May 1, 2025 | 2.21% (0.02208) | 83.60th | v4 (v2025.03.14) |
| Mar 30, 2025 | 12.64% (0.12639) | 93.35th | v4 (v2025.03.14) |
| Mar 29, 2025 | 21.49% (0.21494) | 93.01th | v4 (v2025.03.14) |
| Mar 17, 2025 | 12.64% (0.12639) | 93.42th | v4 (v2025.03.14) |
| Dec 12, 2024 | 6.30% (0.06301) | 93.89th | v3 (v2023.03.01) |
| Oct 18, 2024 | 6.30% (0.06301) | 93.80th | v3 (v2023.03.01) |
| Aug 6, 2023 | 8.44% (0.08436) | 93.55th | v3 (v2023.03.01) |
| May 18, 2023 | 8.99% (0.08986) | 93.66th | v3 (v2023.03.01) |
| Mar 7, 2023 | 6.46% (0.06456) | 92.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.12% (0.03115) | 83.83th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.12% (0.03115) | 82.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.12% (0.03115) | 64.91th | v2 (v2022.01.01) |
Weaknesses (1)
References (17)
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184545.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00043.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00044.html vendor-advisoryx_refsource_SUSE
- http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgJet+7_MAhomFVOXPgLtewcUw9w=k9zdPCkq5tvPxVMA%40mail.gmail.com%3E mailing-listx_refsource_MLIST
- http://mail-archives.apache.org/mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgfn1iKueW51EpmXzXi_URNfGNofZSgOyW1_jnSeNm5DQ%40mail.gmail.com%3E mailing-listx_refsource_MLIST
- http://subversion.apache.org/security/CVE-2016-2168-advisory.txt x_refsource_CONFIRMVendor Advisory
- http://www.debian.org/security/2016/dsa-3561 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/89320 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1035707 vdb-entryx_refsource_SECTRACK
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.417496 vendor-advisoryx_refsource_SLACKWARE
- https://access.redhat.com/security/cve/CVE-2016-2168 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1331683 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-2168
- https://security.gentoo.org/glsa/201610-05 vendor-advisoryx_refsource_GENTOO
- https://subversion.apache.org/security/CVE-2016-2168-advisory.txt
- https://www.cve.org/CVERecord?id=CVE-2016-2168
- https://www.oracle.com/security-alerts/cpuoct2020.html x_refsource_MISC
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published May 5, 2016
Updated Aug 5, 2024
Reserved Jan 29, 2016
Link CVE-2016-2168
CISA Vulnrichment
Updated n/a