CVE-2020-17525
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 40.1%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 40.08% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- apache/subversion · debian/debian linux
- Source
- security@apache.org
References
- https://lists.debian.org/debian-lts-announce/2021/05/msg00000.htmlMailing List, Third Party Advisory
- https://subversion.apache.org/security/CVE-2020-17525-advisory.txtExploit, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/05/msg00000.htmlMailing List, Third Party Advisory
- https://subversion.apache.org/security/CVE-2020-17525-advisory.txtExploit, Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.