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
7.5 High
AI Score
Confidence
High
4.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
26.4%
Issue Overview:
A buffer overflow flaw was found in the Linux kernel’s NFC protocol functionality. This flaw allows a local user to crash or escalate their privileges on the system. (CVE-2022-26490)
A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation threat. (CVE-2022-27666)
In the Linux kernel before 5.17.1, a refcount leak bug was found in net/llc/af_llc.c. (CVE-2022-28356)
Affected Packages:
kernel
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update kernel to update your system.
New Packages:
aarch64:
kernel-4.14.275-207.503.amzn2.aarch64
kernel-headers-4.14.275-207.503.amzn2.aarch64
kernel-debuginfo-common-aarch64-4.14.275-207.503.amzn2.aarch64
perf-4.14.275-207.503.amzn2.aarch64
perf-debuginfo-4.14.275-207.503.amzn2.aarch64
python-perf-4.14.275-207.503.amzn2.aarch64
python-perf-debuginfo-4.14.275-207.503.amzn2.aarch64
kernel-tools-4.14.275-207.503.amzn2.aarch64
kernel-tools-devel-4.14.275-207.503.amzn2.aarch64
kernel-tools-debuginfo-4.14.275-207.503.amzn2.aarch64
kernel-devel-4.14.275-207.503.amzn2.aarch64
kernel-debuginfo-4.14.275-207.503.amzn2.aarch64
i686:
kernel-headers-4.14.275-207.503.amzn2.i686
src:
kernel-4.14.275-207.503.amzn2.src
x86_64:
kernel-4.14.275-207.503.amzn2.x86_64
kernel-headers-4.14.275-207.503.amzn2.x86_64
kernel-debuginfo-common-x86_64-4.14.275-207.503.amzn2.x86_64
perf-4.14.275-207.503.amzn2.x86_64
perf-debuginfo-4.14.275-207.503.amzn2.x86_64
python-perf-4.14.275-207.503.amzn2.x86_64
python-perf-debuginfo-4.14.275-207.503.amzn2.x86_64
kernel-tools-4.14.275-207.503.amzn2.x86_64
kernel-tools-devel-4.14.275-207.503.amzn2.x86_64
kernel-tools-debuginfo-4.14.275-207.503.amzn2.x86_64
kernel-devel-4.14.275-207.503.amzn2.x86_64
kernel-debuginfo-4.14.275-207.503.amzn2.x86_64
kernel-livepatch-4.14.275-207.503-1.0-0.amzn2.x86_64
Red Hat: CVE-2022-26490, CVE-2022-27666, CVE-2022-28356
Mitre: CVE-2022-26490, CVE-2022-27666, CVE-2022-28356
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
7.5 High
AI Score
Confidence
High
4.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
26.4%