CVE-2013-4420: Path Traversal
Multiple directory traversal vulnerabilities in the (1) tarextractglob and (2) tarextractall functions in libtar 1.2.20 and earlier allow remote attackers to overwrite arbitrary files via a .. (dot dot) in a crafted tar file.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/libtarto a version that resolves this vulnerability.Fixed in 1.2.20-8Fixed in 1.2.20-8.1
Event History
Frequently Asked Questions
What is the severity of CVE-2013-4420?
CVE-2013-4420 is classified as a high severity vulnerability due to its ability to allow remote attackers to overwrite arbitrary files.
How do I fix CVE-2013-4420?
To fix CVE-2013-4420, upgrade the libtar package to version 1.2.20-9 or later.
Which versions of libtar are affected by CVE-2013-4420?
CVE-2013-4420 affects libtar versions up to and including 1.2.20.
What are the consequences of exploiting CVE-2013-4420?
Exploiting CVE-2013-4420 can lead to unauthorized file access and overwriting of critical system files.
Is CVE-2013-4420 a remote vulnerability?
Yes, CVE-2013-4420 is a remote vulnerability that can be exploited by attackers through crafted tar files.