PT-2017-3739 · Linux+3 · Linux Kernel+3
Shi Lei
·
Publicado
2017-04-27
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Atualizado
2023-02-14
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CVE-2017-7482
CVSS v3.1
7.8
Alta
| Vetor | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions:
Linux kernel versions prior to 4.12
Description:
The issue is related to the implementation of the Kerberos 5 protocol in the Linux kernel, specifically with the handling of RXRPC keys. It could lead to a buffer overflow when decoding Kerberos 5 tickets, potentially causing memory corruption and possible privilege escalation. The vulnerability may allow an attacker to elevate their privileges or cause a denial of service.
Recommendations:
For Linux kernel versions prior to 4.12, update to version 4.12 or later to resolve the issue. As a temporary workaround, consider restricting access to the Kerberos 5 protocol or disabling the use of RXRPC keys until a patch is available.
Correção
Integer Overflow
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Linux Kernel
Suse
Ubuntu