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CVE-2024-26582

Linux Kernel use-after-free

9.8 CRITICALEPSS 0.71%
  1. Published21 Feb 2024

Description

In the Linux kernel, the following vulnerability has been resolved: net: tls: fix use-after-free with partial reads and async decrypt tls_decrypt_sg doesn't take a reference on the pages from clear_skb, so the put_page() in tls_decrypt_done releases them, and we trigger a use-after-free in process_rx_list when we try to read from the partially-read skb.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Linux Kernel≥ 6.0 < 6.1.79 · ≥ 6.2.0 < 6.6.18 · ≥ 6.7.0 < 6.7.6

Remediation

Fixed in
Linux Kernel≥ 6.1.79

References

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Frequently asked

Is CVE-2024-26582 being actively exploited?

CVE-2024-26582 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.71%.

How severe is CVE-2024-26582?

CVE-2024-26582 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.71% probability of exploitation.

Which products are affected by CVE-2024-26582?

Affected products include Linux Kernel.

How do I fix CVE-2024-26582?

Upgrade affected software to a fixed version, for example Linux Kernel 6.1.79 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-26582 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.