PT-2013-6249 · Python+2 · Python+2
Nick Coghlan
·
Publicado
2013-12-18
·
Atualizado
2019-10-25
·
CVE-2013-7040
CVSS v2.0
4.3
Média
| Vetor | AV:N/AC:M/Au:N/C:N/I:N/A:P |
Name of the Vulnerable Software and Affected Versions
Python versions prior to 3.4
Description
The issue causes Python to compute hash values without properly restricting the ability to trigger hash collisions predictably. This makes it easier for attackers to cause a denial of service via crafted input to an application that maintains a hash table, resulting in CPU consumption.
Recommendations
For versions prior to 3.4, consider upgrading to a version that properly randomizes hash values to prevent predictable hash collisions. As a temporary workaround, consider implementing additional checks or restrictions on input to applications that maintain hash tables to minimize the risk of exploitation.
Exploit
Correção
DoS
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Debian
Python