PT-2025-38454 · Linux+3 · Linux Kernel+3

Published 2025-09-18 · Updated 2025-10-23 · CVE-2023-53435

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description A memory leak exists in the error handling path of the cas init one() function within the Cassini component. The cas saturn firmware init() function allocates memory using vmalloc(), which is freed in the .remove() function but not when an error occurs during the probe process. Adding the missing vfree() function resolves this memory leak.

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

Exploit

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

BDU:2025-12420

CVE-2023-53435

SUSE-SU-2025:03615-1

SUSE-SU-2025:03628-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3761-1

Affected Products

Astra Linux

Cassini

Linux Kernel

Suse

References · 867

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53435.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53435 · Vendor Advisory
• https://git.kernel.org/stable/c/dc61f7582cc92d547d02e141cd66f5d1f4ed8012 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-53435 · Security Note
• https://git.kernel.org/stable/c/172146c26f0c1b86ab4e9ebffc7e06f04229fa17 · Patch
• https://git.kernel.org/stable/c/412cd77a2c24b191c65ea53025222418db09817c · Patch
• https://git.kernel.org/stable/c/60d8e8b88087d68e10c8991a0f6733fa2f963ff0 · Patch
• https://git.kernel.org/stable/c/b8b1a667744741fa7807b09a12797a27f14f3fac · Patch
• https://cve.org/CVERecord?id=CVE-2023-53435 · Security Note
• https://git.kernel.org/stable/c/234e744d86bd95b381d24546df2dba72804e0219 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:3761-1 · Vendor Advisory
• https://git.kernel.org/stable/c/11c0ed097a874156957b515d0ba7e356142eab87 · Patch
• https://ubuntu.com/security/CVE-2023-53435 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53435 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-12420 · Security Note