Input validation error in Ruby - CVE-2013-1821
Published: April 10, 2013 / Updated: December 27, 2021
Vulnerability identifier: #VU42928
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2013-1821
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows remote attackers to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (memory consumption and crash) via crafted text nodes in an XML document, aka an XML Entity Expansion (XEE) attack.
Affected software
Ruby
Amazon Linux AMI
Amazon Linux AMI
How to mitigate CVE-2013-1821
Install update from vendor's website.
External References
- 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://bugzilla.redhat.com/show_bug.cgi?id=914716
- https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0092