PT-2023-7578 · Linux+4 · Linux Kernel+4

Oded Gabbay + 1 · Published 2023-11-22 · Updated 2025-10-03 · CVE-2023-50431

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions through 6.6.5

Description The issue is related to the sec attest info function in the Linux kernel, which allows an information leak to user space because info->pad0 is not initialized. This can potentially allow an attacker to gain unauthorized access to protected information.

Recommendations For Linux kernel versions through 6.6.5, consider updating to a version that includes the necessary fix for the sec attest info function to prevent information leaks. As a temporary workaround, consider restricting access to the sec attest info function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Information Disclosure

Weakness Enumeration

CWE-456

CWE-200

Related Identifiers

ALT-PU-2023-8254

ALT-PU-2024-14046

ALT-PU-2024-6818

ALT-PU-2025-12647

AZL-32175

AZL-62064

BDU:2023-08634

CVE-2023-50431

USN-6688-1

USN-6724-1

USN-6724-2

Affected Products

Alt Linux

Astra Linux

Linuxmint

Linux Kernel

Ubuntu

References · 96

• https://ubuntu.com/security/CVE-2023-5633 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52449 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52448 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26591 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-0340 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52457 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52463 · Vendor Advisory
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a9f07790a4b2250f0140e9a61c7f842fd9b618c7 · Patch
• https://ubuntu.com/security/CVE-2023-52438 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52443 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se81-bulletin-20241206SE81 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52467 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52464 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52603 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-50431 · Vendor Advisory