PT-2022-6768 · Linux+8 · Linux Kernel+8

Ziyang Xuan · Published 2022-10-22 · Updated 2024-04-25 · CVE-2023-3812

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to an out-of-bounds memory access flaw in the Linux kernel's TUN/TAP device driver functionality. This occurs when a user generates a malicious, overly large networking packet with napi frags enabled. The flaw can allow a local user to crash the system or potentially escalate their privileges, impacting the confidentiality, integrity, and availability of protected information.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Out of bounds Read

Memory Corruption

Use After Free

Weakness Enumeration

CWE-125

CWE-787

CWE-416

Related Identifiers

ALSA-2023:7549

ALT-PU-2023-4894

ALT-PU-2023-7439

AZL-27764

BDU:2023-04465

CESA-2023_7548

CESA-2023_7549

CESA-2023_7554

CVE-2023-3812

OESA-2023-1469

OESA-2023-1470

OESA-2023-1471

OPENSUSE-SU-2023_3171-1

OPENSUSE-SU-2023_3172-1

OPENSUSE-SU-2023_3180-1

OPENSUSE-SU-2023_3182-1

OPENSUSE-SU-2023_3302-1

OPENSUSE-SU-2023_3318-1

OPENSUSE-SU-2023_3391-1

OPENSUSE-SU-2023_3680-1

RHSA-2023:6799

RHSA-2023:6813

RHSA-2023:7370

RHSA-2023:7379

RHSA-2023:7382

RHSA-2023:7389

RHSA-2023:7411

RHSA-2023:7418

RHSA-2023:7548

RHSA-2023:7549

RHSA-2023:7554

RHSA-2023_7548

RHSA-2023_7549

RHSA-2024:0340

RHSA-2024:0378

RHSA-2024:0412

RHSA-2024:0461

RHSA-2024:0554

RHSA-2024:0562

RHSA-2024:0563

RHSA-2024:0575

RHSA-2024:0593

RHSA-2024:1961

RHSA-2024:2006

RHSA-2024:2008

RHSA-2024_0461

RLSA-2023:7548

RLSA-2023:7549

RXSA-2023:7549

SUSE-SU-2023:3171-1

SUSE-SU-2023:3172-1

SUSE-SU-2023:3180-1

SUSE-SU-2023:3182-1

SUSE-SU-2023:3302-1

SUSE-SU-2023:3318-1

SUSE-SU-2023:3390-1

SUSE-SU-2023:3391-1

SUSE-SU-2023:3421-1

SUSE-SU-2023:3601-1

SUSE-SU-2023:3680-1

SUSE-SU-2023:3681-1

SUSE-SU-2023:3705-1

SUSE-SU-2023:3748-1

SUSE-SU-2023:3749-1

SUSE-SU-2023:3768-1

SUSE-SU-2023:3772-1

SUSE-SU-2023:3783-1

SUSE-SU-2023:3786-1

SUSE-SU-2023:3788-1

SUSE-SU-2023:3809-1

SUSE-SU-2023:3811-1

SUSE-SU-2023:3812-1

SUSE-SU-2023:3838-1

SUSE-SU-2023:3844-1

SUSE-SU-2023:3846-1

SUSE-SU-2023:3889-1

SUSE-SU-2023:3892-1

SUSE-SU-2023:3893-1

SUSE-SU-2023:3928-1

SUSE-SU-2023_3171-1

SUSE-SU-2023_3172-1

SUSE-SU-2023_3180-1

SUSE-SU-2023_3182-1

Affected Products

Alt Linux

Almalinux

Astra Linux

Centos

Linux Kernel

Red Hat

Red Os

Rocky Linux

Suse

References · 411

• https://osv.dev/vulnerability/RXSA-2023:7549 · Vendor Advisory
• https://osv.dev/vulnerability/RLSA-2023:7549 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:3768-1 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:7382 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:3889-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-38428 · Security Note
• https://access.redhat.com/errata/RHSA-2024:0340 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-3812 · Vendor Advisory
• https://errata.rockylinux.org/RLSA-2023:7549 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:3171-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-3812 · Security Note
• https://access.redhat.com/errata/RHSA-2023:7554 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-3567 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2023:3705-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2024-0461.html · Vendor Advisory