CVE-2020-17525

Summary

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 Software

VendorProductVersion RangeStatus
Apache Software FoundationApache Subversionmod_authz_svn 1.10.7unaffected
Apache Software FoundationApache Subversionmod_authz_svn < 1.14.1affected

Weaknesses

  • CWE-476: CWE-476 NULL Pointer Dereference

Workarounds

As a workaround, the use of in-repository authz rules files with the AuthzSVNReposRelativeAccessFile can be avoided by switching to an alternative configuration which fetches an authz rules file from the server's filesystem, rather than from an SVN repository.

ADP Enrichment

CVE Program Container

Additional References

References