Vulnerability Name:

CVE-2017-16995

Assigned:2017-12-18
Published:2017-12-18
Updated:2018-07-27
Summary:The check_alu_op function in 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 incorrect sign extension.
CVSS v3 Severity:7.8 High (CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
6.2 Medium (CCN CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.4 Medium (CCN Temporal CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-119
References:Source: MISC
Type: VENDOR_ADVISORY
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95a762e2c8c942780948091f8f2a4f32fce1ac6f

Source: MISC
Type: UNKNOWN
http://openwall.com/lists/oss-security/2017/12/21/2

Source: BID
Type: VENDOR_ADVISORY
102288

Source: MISC
Type: VENDOR_ADVISORY
https://bugs.chromium.org/p/project-zero/issues/detail?id=1454

Source: XF
Type: UNKNOWN
linux-kernel-cve201716995-dos(136720)

Source: MISC
Type: VENDOR_ADVISORY
https://github.com/torvalds/linux/commit/95a762e2c8c942780948091f8f2a4f32fce1ac6f

Source: UBUNTU
Type: UNKNOWN
USN-3619-1

Source: UBUNTU
Type: UNKNOWN
USN-3619-2

Source: UBUNTU
Type: UNKNOWN
USN-3633-1

Source: UBUNTU
Type: UNKNOWN
USN-3523-2

Source: DEBIAN
Type: VENDOR_ADVISORY
DSA-4073

Source: EXPLOIT-DB
Type: UNKNOWN
44298

Source: EXPLOIT-DB
Type: UNKNOWN
45010

Source: EXPLOIT-DB
Type: UNKNOWN
45058

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:4.14.8:*:*:*:*:*:*:*

  • Configuration 2:
  • cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:4.14.8:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:201716995
    V
    CVE-2017-16995
    2018-09-18
    oval:com.ubuntu.xenial:def:201716995000
    V
    CVE-2017-16995 on Ubuntu 16.04 LTS (xenial) - high.
    2017-12-27
    oval:com.ubuntu.bionic:def:201716995000
    V
    CVE-2017-16995 on Ubuntu 18.04 LTS (bionic) - high.
    2017-12-27
    oval:com.ubuntu.trusty:def:201716995000
    V
    CVE-2017-16995 on Ubuntu 14.04 LTS (trusty) - high.
    2017-12-27
    oval:com.ubuntu.artful:def:201716995000
    V
    CVE-2017-16995 on Ubuntu 17.10 (artful) - high.
    2017-12-27
    BACK
    linux linux kernel 4.14.8
    debian debian linux 9.0
    linux linux kernel 4.14.8