Input validation error in Ruby - CVE-2013-1821
Published: April 10, 2013 / Updated: December 27, 2021
Vulnerability identifier: #VU42928
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2013-1821
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Ruby
Affected software:
Ruby
Ruby
Detailed vulnerability description
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.
How to mitigate CVE-2013-1821
Install update from vendor's website.
Sources
- 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