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CVE-2024-26828

Linux Kernel integer overflow

9.4 CRITICALEPSS 0.75%
  1. Published17 Apr 2024

Description

In the Linux kernel, the following vulnerability has been resolved: cifs: fix underflow in parse_server_interfaces() In this loop, we step through the buffer and after each item we check if the size_left is greater than the minimum size we need. However, the problem is that "bytes_left" is type ssize_t while sizeof() is type size_t. That means that because of type promotion, the comparison is done as an unsigned and if we have negative bytes left the loop continues instead of ending.

CVSS 3.1 breakdown

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

Affected products

Linux Kernel≥ 4.18 < 6.1.79 · ≥ 6.2 < 6.6.18 · ≥ 6.7 < 6.7.6 · 6.8

Frequently asked

Is CVE-2024-26828 being actively exploited?

CVE-2024-26828 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.75%.

How severe is CVE-2024-26828?

CVE-2024-26828 has a CVSS 3.1 base score of 9.4, rated critical. EPSS estimates a 0.75% probability of exploitation.

Which products are affected by CVE-2024-26828?

Affected products include Linux Kernel.

How do I fix CVE-2024-26828?

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-2024-26828 against the real software inventory on every managed device, every day. 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.