CVE-2019-7308 Detail

Current Description

kernel/bpf/verifier.c in the Linux kernel before 4.20.6 performs undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.6 MEDIUM
Vector:  CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=979d63d50c0c0f7bc537bf821e056cc9fe5abd38 Patch  Third Party Advisory 
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d3bd7413e0ca40b60cf60d4003246d067cafdeda Patch  Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html Third Party Advisory 
http://www.securityfocus.com/bid/106827 Third Party Advisory  VDB Entry 
https://bugs.chromium.org/p/project-zero/issues/detail?id=1711 Issue Tracking  Patch  Third Party Advisory 
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.6 Third Party Advisory 
https://github.com/torvalds/linux/commit/979d63d50c0c0f7bc537bf821e056cc9fe5abd38 Patch  Third Party Advisory 
https://github.com/torvalds/linux/commit/d3bd7413e0ca40b60cf60d4003246d067cafdeda Patch  Third Party Advisory 
https://support.f5.com/csp/article/K43030517
https://support.f5.com/csp/article/K43030517?utm_source=f5support&utm_medium=RSS
https://usn.ubuntu.com/3930-1/ Third Party Advisory 
https://usn.ubuntu.com/3930-2/ Third Party Advisory 
https://usn.ubuntu.com/3931-1/ Third Party Advisory 
https://usn.ubuntu.com/3931-2/ Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-189 Numeric Errors cwe source acceptance level NIST  

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-7308
NVD Published Date:
02/01/2019
NVD Last Modified:
09/24/2019
Source:
MITRE