PT-2015-6870 · Linux+5 · Linux Kernel+5
CVSS v2.0
7.8
Alta
| Vetor | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 4.0.6
Description
The issue concerns the
udp recvmsg and udpv6 recvmsg functions in the Linux kernel, which do not properly consider yielding a processor. This allows remote attackers to cause a denial of service, resulting in a system hang, by sending a flood of UDP packets with incorrect checksums.Recommendations
For Linux kernel versions prior to 4.0.6, update to version 4.0.6 or later to resolve the issue.
As a temporary workaround, consider restricting access to the vulnerable functions
udp recvmsg and udpv6 recvmsg to minimize the risk of exploitation.Exploit
Correção
DoS
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Centos
Linux Kernel
Red Hat
Suse
Ubuntu