Improper Input Validation The advisory has been revoked - it doesn't affect any version of package ruby193-ruby.src (opens in a new tab)
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-RHEL10-RUBY193RUBYSRC-15132989
- published29 Jan 2026
- disclosed22 Feb 2013
Introduced: 22 Feb 2013
CVE-2013-1821 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ruby193-ruby.src package and not the ruby193-ruby.src package as distributed by RHEL.
lib/rexml/text.rb in the REXML parser in Ruby before 1.9.3-p392 allows remote attackers to cause a denial of service (memory consumption and crash) via crafted text nodes in an XML document, aka an XML Entity Expansion (XEE) attack.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=914716
- https://access.redhat.com/security/cve/CVE-2013-1821
- https://access.redhat.com/errata/RHSA-2026:7305
- https://access.redhat.com/errata/RHSA-2026:7307
- https://access.redhat.com/errata/RHSA-2026:8838
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702525
- http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00015.html
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00034.html
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00036.html
- http://rhn.redhat.com/errata/RHSA-2013-0611.html
- http://rhn.redhat.com/errata/RHSA-2013-0612.html
- http://rhn.redhat.com/errata/RHSA-2013-1028.html
- http://rhn.redhat.com/errata/RHSA-2013-1147.html
- http://secunia.com/advisories/52783
- http://secunia.com/advisories/52902
- http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=39384
- http://www.debian.org/security/2013/dsa-2738
- http://www.debian.org/security/2013/dsa-2809
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:124
- http://www.openwall.com/lists/oss-security/2013/03/06/5
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
- http://www.ruby-lang.org/en/news/2013/02/22/rexml-dos-2013-02-22/
- http://www.securityfocus.com/bid/58141
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2013&m=slackware-security.426862
- http://www.ubuntu.com/usn/USN-1780-1
- https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0092