4.4 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
1.4 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
MULTIPLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:L/Au:M/C:P/I:N/A:N
0.0004 Low
EPSS
Percentile
5.4%
Linux kernel is vulnerable to Information Disclosure. The vulnerability exists because the internal memory locations could be returned to userspace, allowing an attacker with permission to insert eBPF code into the kernel, which leads to a leak of internal kernel memory details when handling internal data structures.
git://git.launchpad.net/ubuntu-cve-tracker/tree/active/CVE-2021-4159
access.redhat.com/security/cve/CVE-2021-4159
bugzilla.redhat.com/show_bug.cgi?id=2036024
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=294f2fc6da27620a506e6c050241655459ccd6bd
lists.debian.org/debian-lts-announce/2022/10/msg00000.html
security-tracker.debian.org/tracker/CVE-2021-4159
4.4 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
1.4 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
MULTIPLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:L/Au:M/C:P/I:N/A:N
0.0004 Low
EPSS
Percentile
5.4%