PT-2016-4989 · Linux+4 · Linux Kernel+4
Marcel Holtmann
·
Publicado
2015-11-18
·
Atualizado
2018-08-30
·
CVE-2016-2053
CVSS v3.1
4.7
Média
| Vetor | AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 4.3
Description
The issue allows attackers to cause a denial of service, leading to a panic, through an ASN.1 BER file that lacks a public key. This is due to the mishandling by the
public key verify signature function in crypto/asymmetric keys/public key.c when the asn1 ber decoder function in lib/asn1 decoder.c is used.Recommendations
For Linux kernel versions prior to 4.3, update to version 4.3 or later to resolve the issue. As a temporary workaround, consider restricting the use of ASN.1 BER files that lack a public key to minimize the risk of exploitation.
Correção
DoS
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Centos
Linux Kernel
Red Hat
Suse