PT-2017-1927 · Linux+1 · Linux Kernel+1

Johannes Berg · Publicado 2017-02-02 · Atualizado 2017-05-12 · CVE-2017-8065

Positive Technologies (AI Summary)

CVSS v3.1

7.8

Alta

Vetor base

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 4.9.x through 4.10.12

Description The issue is caused by incorrect interaction with the CONFIG VMAP STACK option in the crypto/ccm.c driver, allowing local users to cause a denial of service, such as a system crash or memory corruption, by leveraging the use of more than one virtual page for a DMA scatterlist. This is due to a buffer overflow in memory.

Recommendations For Linux kernel versions 4.9.x through 4.10.12, consider disabling the CONFIG VMAP STACK option as a temporary workaround to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Buffer Overflow

Enumeração de Fraquezas

CWE-119

Identificadores relacionados

ALT-PU-2017-1127

ALT-PU-2017-1398

ALT-PU-2017-1601

BDU:2017-01087

CVE-2017-8065

Produtos afetados

Alt Linux

Linux Kernel

Referências · 10

• https://github.com/torvalds/linux/commit/3b30460c5b0ed762be75a004e924ec3f8711e032 · Correção
• http://securityfocus.com/bid/97994 · Nota
• http://openwall.com/lists/oss-security/2017/04/16/4 · Correção
• https://nvd.nist.gov/vuln/detail/CVE-2017-8065 · Nota de Segurança
• https://bdu.fstec.ru/vul/2017-01087 · Nota de Segurança
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b30460c5b0ed762be75a004e924ec3f8711e032 · Correção
• https://osv.dev/vulnerability/CVE-2017-8065 · Aviso do Fabricante
• https://cve.org/CVERecord?id=CVE-2017-8065 · Nota de Segurança
• https://ubuntu.com/security/CVE-2017-8065 · Aviso do Fabricante
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-8065 · Aviso do Fabricante