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CVE-2024-50073

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: tty: n_gsm: Fix use-after-free in gsm_cleanup_mux BUG: KASAN: slab-use-after-free in gsm_cleanup_mux+0x77b/0x7b0 drivers/tty/n_…

Published Oct 29, 2024CWE-416EPSS 0.26%

Overview

CVE-2024-50073 is a high-severity vulnerability. It was published on October 29, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

tty: n_gsm: Fix use-after-free in gsm_cleanup_mux

BUG: KASAN: slab-use-after-free in gsm_cleanup_mux+0x77b/0x7b0

drivers/tty/n_gsm.c:3160 [n_gsm]

Read of size 8 at addr ffff88815fe99c00 by task poc/3379

CPU: 0 UID: 0 PID: 3379 Comm: poc Not tainted 6.11.0+ #56

Hardware name: VMware, Inc. VMware Virtual Platform/440BX

Desktop Reference Platform, BIOS 6.00 11/12/2020

Call Trace:

<TASK>

gsm_cleanup_mux+0x77b/0x7b0 drivers/tty/n_gsm.c:3160 [n_gsm]

__pfx_gsm_cleanup_mux+0x10/0x10 drivers/tty/n_gsm.c:3124 [n_gsm]

__pfx_sched_clock_cpu+0x10/0x10 kernel/sched/clock.c:389

update_load_avg+0x1c1/0x27b0 kernel/sched/fair.c:4500

__pfx_min_vruntime_cb_rotate+0x10/0x10 kernel/sched/fair.c:846

__rb_insert_augmented+0x492/0xbf0 lib/rbtree.c:161

gsmld_ioctl+0x395/0x1450 drivers/tty/n_gsm.c:3408 [n_gsm]

_raw_spin_lock_irqsave+0x92/0xf0 arch/x86/include/asm/atomic.h:107

__pfx_gsmld_ioctl+0x10/0x10 drivers/tty/n_gsm.c:3822 [n_g

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/0eec592c6a7460ba795d7de29f3dc95cb5422e62Refgit.kernel.org/stable/c/9462f4ca56e7d2430fdb6dcc8498244acbfc4489Refgit.kernel.org/stable/c/bf171b5e86e41de4c1cf32fb7aefa275c3d7de49Refgit.kernel.org/stable/c/c29f192e0d44cc1cbaf698fa1ff198f63556691aReflists.debian.org/debian-lts-announce/2025/01/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-50073?

CVE-2024-50073 is a high-severity vulnerability. It was published on October 29, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-50073?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-50073?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-50073?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-50073 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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