PT-2024-11354 · Linux+2 · Linux Kernel+2

Hulk Robot · Published 2021-05-11 · Updated 2024-12-26 · CVE-2021-47357

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 a possible use-after-free in the ia module exit() function of the atm: iphase module. This occurs because the module's remove path calls del timer(), which does not wait until the timer handler finishes, potentially resulting in a use-after-free. The fix involves calling del timer sync() to ensure the timer handler has finished and cannot re-schedule itself.

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

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2025-07458

CVE-2021-47357

OESA-2024-1692

SUSE-SU-2024:1979-1

SUSE-SU-2024:1983-1

SUSE-SU-2024:2184-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 535

• https://osv.dev/vulnerability/SUSE-SU-2024:1983-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-35823 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-27399 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47458 · Security Note
• https://osv.dev/vulnerability/CVE-2021-47357 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47357 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47443 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-27020 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-36015 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:1979-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-36004 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47559 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47397 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-52804 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47404 · Security Note