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

Johannes Berg · Published 2017-02-02 · Updated 2017-05-12 · CVE-2017-8065

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2017-1127

ALT-PU-2017-1398

ALT-PU-2017-1601

BDU:2017-01087

CVE-2017-8065

Affected Products

Alt Linux

Linux Kernel

References · 10

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