CVE-2019-7308

Severity

47%

Complexity

34%

Confidentiality

115%

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.

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.

CVSS 3.0 Base Score 5.6. CVSS Attack Vector: local. CVSS Attack Complexity: high. CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N).

CVSS 2.0 Base Score 4.7. CVSS Attack Vector: local. CVSS Attack Complexity: medium. CVSS Vector: (AV:L/AC:M/Au:N/C:C/I:N/A:N).

Overview

First reported 6 years ago

2019-02-01 22:29:00

Last updated 5 years ago

2019-09-24 20:15:00

Affected Software

Linux Kernel

Canonical Ubuntu Linux 14.04 LTS (Long-Term Support)

14.04

Canonical Ubuntu Linux 16.04 LTS (Long-Term Support)

16.04

Canonical Ubuntu Linux 18.04 LTS Edition

18.04

Canonical Ubuntu Linux 18.10

18.10

openSUSE Leap 15.0

15.0

References

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

openSUSE-SU-2019:1193

Third Party Advisory

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

USN-3930-1

Third Party Advisory

USN-3930-2

Third Party Advisory

USN-3931-1

Third Party Advisory

USN-3931-2

Third Party Advisory

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