What is CVE-2024-26752?

CVE-2024-26752 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2024-26752 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-26752?

CVE-2024-26752 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-26752?

No patch is currently available for CVE-2024-26752. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2024-26752 actively exploited?

CVE-2024-26752 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-26752

Medium

In the Linux kernel, the following vulnerability has been resolved: l2tp: pass correct message length to ip6_append_data l2tp_ip6_sendmsg needs to avoid accounting for the transport header twice when splicing more data into an already partially-occupied skbuff. To manage this, we check whether the skbuff contains data using skb_queue_empty when deciding how much data to append using ip6_append_data. However, the code which performed the calculation was incorrect: ulen = len + skb_queue_empty(&sk->sk_write_queue) ? transhdrlen : 0; ...due to C operator precedence, this ends up setting ulen to transhdrlen for messages with a non-zero length, which results in corrupted packets on the wire. Add parentheses to correct the calculation in line with the original intent.

Package Linux Kernel

Published 2024-04-03

Last modified 2025-03-17

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-131

CVE-2024-26752 is classified as CWE-131

See CWE-131 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2024-26752 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Debian Security
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html

Mailing List
Debian Security
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

Mailing List
Kernel patch commit
https://git.kernel.org/stable/c/0da15a70395182ee8cb75716baf00dddc0bea38d
Patch
Kernel patch commit
https://git.kernel.org/stable/c/13cd1daeea848614e585b2c6ecc11ca9c8ab2500
Patch
Kernel patch commit
https://git.kernel.org/stable/c/359e54a93ab43d32ee1bff3c2f9f10cb9f6b6e79
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2024-26752

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-04-03

Modified 2025-03-17

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2024-26752?

CVE-2024-26752 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2024-26752 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-26752?

CVE-2024-26752 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-26752?

No patch is currently available for CVE-2024-26752. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2024-26752 actively exploited?

No — CVE-2024-26752 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.