CVE-2020-17525
HIGH7.5EPSS 14.8%Remote unauthenticated denial-of-service in Subversion mod_authz_svn
Published: 3/17/2021Modified: 4/28/2026
Description
Subversion's mod_authz_svn module will crash if the server is using in-repository authz rules with the AuthzSVNReposRelativeAccessFile option and a client sends a request for a non-existing repository URL. This can lead to disruption for users of the service. This issue was fixed in mod_dav_svn+mod_authz_svn servers 1.14.1 and mod_dav_svn+mod_authz_svn servers 1.10.7
Affected packages (5)
- Alpine/subversionfrom 0, < 1.12.2-r1
- Bitnami/subversion>= 1.9.0, < 1.10.7, >= 1.11.0, < 1.14.1
- Debian/subversionfrom 0, < 1.14.1-1
- Debian/subversionfrom 0, < 1.9.5-1+deb9u6
- Debian/subversionfrom 0, < 1.10.4-1+deb10u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (5)
- ADVISORYhttps://security.alpinelinux.org/vuln/CVE-2020-17525
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2020-17525
- WEBhttps://lists.debian.org/debian-lts-announce/2021/05/msg00000.html
- WEBhttps://nvd.nist.gov/vuln/detail/CVE-2020-17525
- WEBhttps://subversion.apache.org/security/CVE-2020-17525-advisory.txt