Veracode Vulnerability DatabaseVERACODE:20132Out-Of-Bounds Read
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
Linux kernel is vulnerable to out-of-bounds read vulnerability. The vulnerability exists in the adjust_scalar_min_max_vals() function in kernel/bpf/verifier.c due to faulty computation of numeric bounds in the BPF verifier as it mishandles 32-bit right shifts causing an out-of-bounds memory access.
References
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b799207e1e1816b09e7a5920fbb2d5fcf6edd681
access.redhat.com/errata/RHSA-2019:0512
access.redhat.com/errata/RHSA-2019:0514
access.redhat.com/security/updates/classification/#important
bugs.chromium.org/p/project-zero/issues/detail?id=1686
cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.75
cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.13
github.com/torvalds/linux/commit/b799207e1e1816b09e7a5920fbb2d5fcf6edd681
support.f5.com/csp/article/K38456756
usn.ubuntu.com/3832-1/
usn.ubuntu.com/3835-1/
usn.ubuntu.com/3847-1/
usn.ubuntu.com/3847-2/
usn.ubuntu.com/3847-3/
Related
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C