Amazon Linux AMI update for kernel



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-3390
CWE-ID CWE-416
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Amazon Linux AMI
Operating systems & Components / Operating system

kernel
Operating systems & Components / Operating system package or component

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU78007

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-3390

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within net/netfilter/nf_tables_api.c in the Linux kernel netfilter subsystem. A local user can trigger a use-after-fee error and escalate privileges on the system.

Mitigation

Update the affected packages:

i686:
    perf-debuginfo-4.14.322-170.535.amzn1.i686
    kernel-devel-4.14.322-170.535.amzn1.i686
    kernel-tools-debuginfo-4.14.322-170.535.amzn1.i686
    kernel-debuginfo-4.14.322-170.535.amzn1.i686
    kernel-tools-devel-4.14.322-170.535.amzn1.i686
    kernel-debuginfo-common-i686-4.14.322-170.535.amzn1.i686
    perf-4.14.322-170.535.amzn1.i686
    kernel-tools-4.14.322-170.535.amzn1.i686
    kernel-4.14.322-170.535.amzn1.i686
    kernel-headers-4.14.322-170.535.amzn1.i686

src:
    kernel-4.14.322-170.535.amzn1.src

x86_64:
    kernel-debuginfo-common-x86_64-4.14.322-170.535.amzn1.x86_64
    kernel-debuginfo-4.14.322-170.535.amzn1.x86_64
    perf-debuginfo-4.14.322-170.535.amzn1.x86_64
    kernel-devel-4.14.322-170.535.amzn1.x86_64
    perf-4.14.322-170.535.amzn1.x86_64
    kernel-4.14.322-170.535.amzn1.x86_64
    kernel-headers-4.14.322-170.535.amzn1.x86_64
    kernel-tools-4.14.322-170.535.amzn1.x86_64
    kernel-tools-devel-4.14.322-170.535.amzn1.x86_64
    kernel-tools-debuginfo-4.14.322-170.535.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

kernel: All versions

CPE2.3 External links

https://alas.aws.amazon.com/ALAS-2023-1827.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



###SIDEBAR###