subversion: remotely triggerable DoS vulnerability in svnserve 'get-deleted-rev'
Published Sep 26, 2019
6.5
MEDIUMCVSS 3.1
EPSS 2.42%
Description
In Apache Subversion versions up to and including 1.9.10, 1.10.4, 1.12.0, Subversion's svnserve server process may exit when a well-formed read-only request produces a particular answer. This can lead to disruption for users of the server.
Affected products
- Vendor n/a Product Apache Subversion Defaultn/a
- Version Apache Subversion versions up to and including 1.9.10, 1.10.4, 1.12.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Apache Subversion | n/a |
|
- ≤ 1.9.10
- ≥ 1.10.0 · ≤ 1.10.4
- ≥ 1.11.0 · ≤ 1.11.1
- 1.12.0
No data.
Red Hat Enterprise Linux 7
subversion-0:1.7.14-16.el7
Fixed · RHSA-2020:3972
Red Hat Enterprise Linux 8
subversion:1.10-8030020200519083055.9ce6d490
Fixed · RHSA-2020:4712
Red Hat Enterprise Linux 5
subversion
Out of support scope
Red Hat Enterprise Linux 6
subversion
Out of support scope
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | subversion-0:1.7.14-16.el7 | Fixed | RHSA-2020:3972 |
| Red Hat Enterprise Linux 8 | subversion:1.10-8030020200519083055.9ce6d490 | Fixed | RHSA-2020:4712 |
| Red Hat Enterprise Linux 5 | subversion | Out of support scope | n/a |
| Red Hat Enterprise Linux 6 | subversion | Out of support scope | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
An authenticated user can cause subversion server (svnserve) process to crash by sending a well-formed read-only request which produces a particular answer. Exploitation results in denial of service by crashing an svnserve process. The impact of this differs depending on how svnserve is launched, including the different run modes selected by options such as "svnserve -d", "svnserve -T -d", "svnserve -t", and "svnserve -i". mod_dav_svn is not affected by this flaw.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:S/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 2.42% (0.02422) | 83.62th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.42% (0.02422) | 81.98th | v5 (v2026.06.15) |
| Nov 21, 2025 | 1.10% (0.01098) | 77.37th | v4 (v2025.03.14) |
| Nov 18, 2025 | 3.19% (0.03185) | 85.74th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.57% (0.00573) | 66.78th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00061) | 27.98th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.05% (0.00054) | 21.63th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00054) | 19.57th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.24% (0.01241) | 30.13th | v1 |
| Jan 6, 2022 | 1.24% (0.01241) | 29.49th | v1 |
| Sep 1, 2021 | 1.24% (0.01241) | 67.45th | v1 |
| Apr 14, 2021 | 1.24% (0.01241) | 0.00th | v1 |
References (6)
- http://subversion.apache.org/security/CVE-2018-11782-advisory.txt x_refsource_MISCPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2018-11782 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1733088 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2018-11782
- https://subversion.apache.org/security/CVE-2018-11782-advisory.txt
- https://www.cve.org/CVERecord?id=CVE-2018-11782
| Link | Providers | Tags |
|---|---|---|
| http://subversion.apache.org/security/CVE-2018-11782-advisory.txt | x_refsource_MISCPatchVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2018-11782 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1733088 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-11782 | ||
| https://subversion.apache.org/security/CVE-2018-11782-advisory.txt | ||
| https://www.cve.org/CVERecord?id=CVE-2018-11782 |
Change history (0)
No recorded changes yet.