Improper input validation in Apache Subversion
Priority LOW 33CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 7 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
EPSS 0.02422 84th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 7 fixed, 2 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Apache Subversion | Apache Subversion versions up to and including 1.9.10, 1.10.4, 1.12.0 | — | No fix listed | CNA |
- Apache Subversion Vendor— Affected Apache Subversion versions up to and including 1.9.10, 1.10.4, 1.12.0 Fixed in — No fix listed CNA
Remediation
Red Hat 2 advisories
- RHSA-2020:4712 Released 2020-11-04 · Red Hat rating Moderatesubversion:1.10 security update
- Red Hat Enterprise Linux AppStream (v. 8) libserf-1.3.9-9.module+el8.3.0+6671+2675c974.aarch64::subversion:1.10, libserf-1.3.9-9.module+el8.3.0+6671+2675c974.ppc64le::subversion:1.10, libserf-1.3.9-9.module+el8.3.0+6671+2675c974.s390x::subversion:1.10 +37
- RHSA-2020:3972 Released 2020-09-29 · Red Hat rating Moderatesubversion security update
- Red Hat Enterprise Linux Client Optional (v. 7) mod_dav_svn-1.7.14-16.el7, subversion-1.7.14-16.el7, subversion-devel-1.7.14-16.el7 +8
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) mod_dav_svn-1.7.14-16.el7, subversion-1.7.14-16.el7, subversion-devel-1.7.14-16.el7 +8
- Red Hat Enterprise Linux Server (v. 7) mod_dav_svn-1.7.14-16.el7, subversion-1.7.14-16.el7, subversion-1.7.14-16.el7.ppc +4
- Red Hat Enterprise Linux Server Optional (v. 7) subversion-devel-1.7.14-16.el7, subversion-devel-1.7.14-16.el7.ppc, subversion-javahl-1.7.14-16.el7 +9
- Red Hat Enterprise Linux Workstation (v. 7) mod_dav_svn-1.7.14-16.el7, subversion-1.7.14-16.el7, subversion-gnome-1.7.14-16.el7 +1
- Red Hat Enterprise Linux Workstation Optional (v. 7) subversion-devel-1.7.14-16.el7, subversion-javahl-1.7.14-16.el7, subversion-kde-1.7.14-16.el7 +4
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2020:4712 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2020:3972 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2020:3972 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2020:3972 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2020:3972 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2020:3972 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2020:3972 |
Timeline
- 2026-10-02 Threatist record created from CVE-2018-11782
- 2026-10-03 Alias added: GHSA-mggm-8657-6fhf
References
More Apache Subversion vulnerabilities
- TI-2015-04418 Integer overflow in the read_string function in libsvn_ra_svn/marshal.c in Apache… CVSS 3.0HIGH 8.6
- TI-2018-08457 Subversion's mod_dav_svn Apache HTTPD module versions 1.11.0 and 1.10.0 to 1.10.3 will… CVSS 3.1HIGH 7.5
- TI-2020-13273 Remote unauthenticated denial-of-service in Subversion mod_authz_svn CVSS 3.1HIGH 7.5
- TI-2017-07180 Improper input validation in Apache Subversion CVSS 3.0CRITICAL 9.8
- TI-2015-04497 Integer overflow in util.c in mod_dav_svn in Apache Subversion 1.7.x, 1.8.x before… CVSS 3.0HIGH 7.6
- TI-2013-01858 contrib/hook-scripts/svn-keyword-check.pl in Subversion before 1.6.23 allows remote… CVSS 2.0HIGH 7.1
Sources
- CVE-2018-11782 · CVE Program
- CVE-2018-11782 · NVD
- FIRST EPSS
- GHSA-mggm-8657-6fhf · GitHub Advisory Database · CC BY 4.0
- CVE-2018-11782 · Red Hat security data · CC BY 4.0
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