Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2024-56739

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: rtc: check if __rtc_read_time was successful in rtc_timer_do_work() If the __rtc_read_time call fails,, the struct rtc_time tm;…

Published Dec 29, 2024CWE-908EPSS 0.23%

Overview

CVE-2024-56739 is a medium-severity vulnerability. It was published on December 29, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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:

rtc: check if __rtc_read_time was successful in rtc_timer_do_work()

If the __rtc_read_time call fails,, the struct rtc_time tm; may contain

uninitialized data, or an illegal date/time read from the RTC hardware.

When calling rtc_tm_to_ktime later, the result may be a very large value

(possibly KTIME_MAX). If there are periodic timers in rtc->timerqueue,

they will continually expire, may causing kernel softlockup.

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/0d68e8514d9040108ff7d1b37ca71096674b6efeRefgit.kernel.org/stable/c/246f621d363988e7040f4546d20203dc713fa3e1Refgit.kernel.org/stable/c/39ad0a1ae17b54509cd9e93dcd8cec16e7c12d3fRefgit.kernel.org/stable/c/44b3257ff705d63d5f00ef8ed314a0eeb7ec37f2Refgit.kernel.org/stable/c/a1f0b4af90cc18b10261ecde56c6a56b22c75bd1Refgit.kernel.org/stable/c/dd4b1cbcc916fad5d10c2662b62def9f05e453d4Refgit.kernel.org/stable/c/e77bce0a8c3989b4173c36f4195122bca8f4a3e1Refgit.kernel.org/stable/c/e8ba8a2bc4f60a1065f23d6a0e7cbea945a0f40dRefgit.kernel.org/stable/c/fde56535505dde3336df438e949ef4742b6d6d6eReflists.debian.org/debian-lts-announce/2025/03/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-56739?

CVE-2024-56739 is a medium-severity vulnerability. It was published on December 29, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-56739?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-56739?

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-2024-56739?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-56739 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.

Related MEDIUM CVEs from 2024

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999