Vulnerability CVE-2017-16996


Published: 2017-12-27

Description:
kernel/bpf/verifier.c in the Linux kernel through 4.14.8 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging register truncation mishandling.

See advisories in our WLB2 database:
Topic
Author
Date
High
Linux >=4.9 eBPF memory corruption bugs
Jann Horn
21.12.2017

Type:

CWE-119

(Improper Restriction of Operations within the Bounds of a Memory Buffer)

Vendor: Debian
Product: Debian linux 
Version: 9.0;
Vendor: Linux
Product: Linux kernel 
Version: 4.14.8;

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete

 References:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0c17d1d2c61936401f4702e1846e2c19b200f958
http://openwall.com/lists/oss-security/2017/12/21/2
http://www.securityfocus.com/bid/102267
https://bugs.chromium.org/p/project-zero/issues/detail?id=1454
https://github.com/torvalds/linux/commit/0c17d1d2c61936401f4702e1846e2c19b200f958

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