Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') Affecting subversion-ruby package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL7-SUBVERSIONRUBY-1356339
- published26 Jul 2021
- disclosed29 Nov 2016
Introduced: 29 Nov 2016
CVE-2016-8734 (opens in a new tab)How to fix?
There is no fixed version for RHEL:7 subversion-ruby.
NVD Description
Note: Versions mentioned in the description apply only to the upstream subversion-ruby package and not the subversion-ruby package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
Apache Subversion's mod_dontdothat module and HTTP clients 1.4.0 through 1.8.16, and 1.9.0 through 1.9.4 are vulnerable to a denial-of-service attack caused by exponential XML entity expansion. The attack can cause the targeted process to consume an excessive amount of CPU resources or memory.
References
- http://www.securityfocus.com/bid/94588
- https://subversion.apache.org/security/CVE-2016-8734-advisory.txt
- https://access.redhat.com/security/cve/CVE-2016-8734
- http://www.debian.org/security/2017/dsa-3932
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://lists.apache.org/thread.html/7798f5cda1b2a3c70db4be77694b12dec8fcc1a441b00009d44f0e09@%3Cannounce.apache.org%3E
- http://www.securitytracker.com/id/1037361
- https://lists.apache.org/thread.html/7798f5cda1b2a3c70db4be77694b12dec8fcc1a441b00009d44f0e09%40%3Cannounce.apache.org%3E