CVE-2017-16995

Current Description

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.

Basic Data

PublishedDecember 27, 2017
Last ModifiedJuly 28, 2018
Assignercve@mitre.org
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeCWE-119
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS 2 - Access VectorLOCAL
CVSS 2 - Access ComplexityLOW
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactCOMPLETE
CVSS 2 - Availability ImpactCOMPLETE
CVSS 2 - Base Score7.2
SeverityHIGH
Exploitability Score3.9
Impact Score10.0
Obtain All Privilegefalse
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

CVSS 3 - Version3.0
CVSS 3 - Vector StringCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3 - Attack VectorLOCAL
CVSS 3 - Attack ComplexityLOW
CVSS 3 - Privileges RequiredLOW
CVSS 3 - User InteractionNONE
CVSS 3 - ScopeUNCHANGED
CVSS 3 - Confidentiality ImpactHIGH
CVSS 3 - Integrity ImpactHIGH
CVSS 3 - Availability ImpactHIGH
CVSS 3 - Base Score7.8
CVSS 3 - Base SeverityHIGH
Exploitability Score1.8
Base SeverityHIGH

Configurations

  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3OSLinuxLinux Kernel********4.14.8
  • OR - Configuration 2
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3OSDebianDebian Linux9.0*******

Vulnerable Software List

VendorProductVersions
Debian Debian Linux 9.0
Linux Linux Kernel *

References

NameSourceURLTags
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95a762e2c8c942780948091f8f2a4f32fce1ac6fhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95a762e2c8c942780948091f8fMISCVendor Advisory
http://openwall.com/lists/oss-security/2017/12/21/2http://openwall.com/lists/oss-security/2017/12/21/2MISCMailing List
102288http://www.securityfocus.com/bid/102288BIDThird Party Advisory VDB Entry
https://bugs.chromium.org/p/project-zero/issues/detail?id=1454https://bugs.chromium.org/p/project-zero/issues/detail?id=1454MISCThird Party Advisory
https://github.com/torvalds/linux/commit/95a762e2c8c942780948091f8f2a4f32fce1ac6fhttps://github.com/torvalds/linux/commit/95a762e2c8c942780948091f8f2a4f32fce1ac6fMISCThird Party Advisory
USN-3619-1https://usn.ubuntu.com/3619-1/UBUNTU
USN-3619-2https://usn.ubuntu.com/3619-2/UBUNTU
USN-3633-1https://usn.ubuntu.com/3633-1/UBUNTU
USN-3523-2https://usn.ubuntu.com/usn/usn-3523-2/UBUNTU
DSA-4073https://www.debian.org/security/2017/dsa-4073DEBIANThird Party Advisory
44298https://www.exploit-db.com/exploits/44298/EXPLOIT-DB
45010https://www.exploit-db.com/exploits/45010/EXPLOIT-DB
45058https://www.exploit-db.com/exploits/45058/EXPLOIT-DB