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CVE-2024-26608

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix global oob in ksmbd_nl_policy Similar to a reported issue (check the commit b33fb5b801c6 ("net: qualcomm: rmnet: fix…

Published Mar 11, 2024CWE-125EPSS 0.23%

Overview

CVE-2024-26608 is a high-severity vulnerability. It was published on March 11, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

ksmbd: fix global oob in ksmbd_nl_policy

Similar to a reported issue (check the commit b33fb5b801c6 ("net:

qualcomm: rmnet: fix global oob in rmnet_policy"), my local fuzzer finds

another global out-of-bounds read for policy ksmbd_nl_policy. See bug

trace below:

==================================================================

BUG: KASAN: global-out-of-bounds in validate_nla lib/nlattr.c:386 [inline]

BUG: KASAN: global-out-of-bounds in __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600

Read of size 1 at addr ffffffff8f24b100 by task syz-executor.1/62810

CPU: 0 PID: 62810 Comm: syz-executor.1 Tainted: G N 6.1.0 #3

Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014

Call Trace:

<TASK>

__dump_stack lib/dump_stack.c:88 [inline]

dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106

print_address_description mm/kasan/report.c:284 [inline]

print_report+0x172/0x475 mm/kas

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/2c939c74ef0b74e99b92e32edc2a59f9b9ca3d5aRefgit.kernel.org/stable/c/6993328a4cd62a24df254b587c0796a4a1eecc95Refgit.kernel.org/stable/c/9863a53100f47652755545c2bd43e14a1855104dRefgit.kernel.org/stable/c/aaa1f1a2ee80888c12ae2783f3a0be10e14067c5Refgit.kernel.org/stable/c/ebeae8adf89d9a82359f6659b1663d09beec2faaRefgit.kernel.org/stable/c/2c939c74ef0b74e99b92e32edc2a59f9b9ca3d5aRefgit.kernel.org/stable/c/6993328a4cd62a24df254b587c0796a4a1eecc95Refgit.kernel.org/stable/c/9863a53100f47652755545c2bd43e14a1855104dRefgit.kernel.org/stable/c/aaa1f1a2ee80888c12ae2783f3a0be10e14067c5Refgit.kernel.org/stable/c/ebeae8adf89d9a82359f6659b1663d09beec2faa

How CyberStrike helps

Frequently asked questions

What is CVE-2024-26608?

CVE-2024-26608 is a high-severity vulnerability. It was published on March 11, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-26608?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-26608?

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-2024-26608?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-26608 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.

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