PT-2014-1911 · File+3 · File+3
Carsten Wolff
·
Publicado
2014-03-23
·
Atualizado
2024-06-15
·
CVE-2013-7345
CVSS v2.0
5.0
Média
| Vetor | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Name of the Vulnerable Software and Affected Versions
file versions prior to 5.15
Description
The issue concerns multiple vulnerabilities in the file package that can lead to a denial of service, potentially disrupting the availability of protected information. Exploitation of these vulnerabilities can be achieved remotely. Specifically, the BEGIN regular expression in the awk script detector uses multiple wildcards with unlimited repetitions, allowing context-dependent attackers to cause a denial of service via a crafted ASCII file that triggers excessive backtracking, such as a file containing many newline characters.
Recommendations
For versions prior to 5.15, update to version 5.15 or later to resolve the issue. As a temporary workaround, consider restricting the use of the awk script detector in the magic/Magdir/commands directory to minimize the risk of exploitation. Avoid using the vulnerable
BEGIN regular expression in the awk script detector until the issue is resolved.Exploit
Correção
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Identificadores relacionados
Produtos afetados
Centos
Red Hat
Ubuntu
File