What is CVE-2024-35827?

CVE-2024-35827 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Integer Overflow flaw (CWE-190), affecting Linux kernel versions from 6.0 onward and patched in 6.1.83, 6.6.23, 6.7.11 and others. CVE-2024-35827 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-35827?

CVE-2024-35827 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-2024-35827?

Yes, CVE-2024-35827 has been patched. Fixed versions include 6.1.83, 6.6.23, 6.7.11 and others. If you are running Linux kernel 6.0 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-35827 actively exploited?

CVE-2024-35827 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/190.html

CVE-2024-35827

Medium

In the Linux kernel, the following vulnerability has been resolved: io_uring/net: fix overflow check in io_recvmsg_mshot_prep() The "controllen" variable is type size_t (unsigned long). Casting it to int could lead to an integer underflow. The check_add_overflow() function considers the type of the destination which is type int. If we add two positive values and the result cannot fit in an integer then that's counted as an overflow. However, if we cast "controllen" to an int and it turns negative, then negative values *can* fit into an int type so there is no overflow. Good: 100 + (unsigned long)-4 = 96 <-- overflow Bad: 100 + (int)-4 = 96 <-- no overflow I deleted the cast of the sizeof() as well. That's not a bug but the cast is unnecessary.

Package Linux Kernel

Published 2024-05-17

Last modified 2025-02-03

CVSS version 3.1

Patch available

Yes

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-190

CVE-2024-35827 is a Integer Overflow vulnerability

What is Integer Overflow?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.0 and later are affected. Fixed in 6.1.83, 6.6.23, 6.7.11, 6.8.2, 6.9 and their respective stable series.

Affected from

≥ 6.0

Fixed in

✓ 6.1.83 6.1.x ✓ 6.6.23 6.6.x ✓ 6.7.11 6.7.x ✓ 6.8.2 6.8.x ✓ 6.9

References

5 total

Kernel Git
https://git.kernel.org/stable/c/0c8c74bb59e7d77554016efc34c2d10376985e5e

Patch
Kernel Git
https://git.kernel.org/stable/c/59a534690ecc3af72c6ab121aeac1237a4adae66

Patch
Kernel Git
https://git.kernel.org/stable/c/868ec868616438df487b9e2baa5a99f8662cc47c

Patch
Kernel Git
https://git.kernel.org/stable/c/8ede3db5061bb1fe28e2c9683329aafa89d2b1b4

Patch
Kernel Git
https://git.kernel.org/stable/c/b6563ad0d599110bd5cf8f56c47d279c3ed796fe

Patch

Details

CVE ID CVE-2024-35827

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-17

Modified 2025-02-03

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-35827?

CVE-2024-35827 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Integer Overflow flaw (CWE-190) . It affects Linux kernel versions from 6.0 onward and has been patched in 6.1.83, 6.6.23, 6.7.11 and others. CVE-2024-35827 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-35827?

CVE-2024-35827 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-2024-35827?

Yes. CVE-2024-35827 has been patched. Fixed versions include 6.1.83, 6.6.23, 6.7.11 and others. If you are running Linux kernel 6.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-35827 actively exploited?

No. CVE-2024-35827 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.