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CVE-2024-26663

7.8 · HIGH
Published Apr 2, 2024 linux CWE-476 EPSS 0.25% (16th pctl)

Overview

CVE-2024-26663 is a high-severity vulnerability affecting linux linux_kernel. It was published on April 2, 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:

tipc: Check the bearer type before calling tipc_udp_nl_bearer_add()

syzbot reported the following general protection fault [1]:

general protection fault, probably for non-canonical address 0xdffffc0000000010: 0000 [#1] PREEMPT SMP KASAN

KASAN: null-ptr-deref in range [0x0000000000000080-0x0000000000000087]

...

RIP: 0010:tipc_udp_is_known_peer+0x9c/0x250 net/tipc/udp_media.c:291

...

Call Trace:

<TASK>

tipc_udp_nl_bearer_add+0x212/0x2f0 net/tipc/udp_media.c:646

tipc_nl_bearer_add+0x21e/0x360 net/tipc/bearer.c:1089

genl_family_rcv_msg_doit+0x1fc/0x2e0 net/netlink/genetlink.c:972

genl_family_rcv_msg net/netlink/genetlink.c:1052 [inline]

genl_rcv_msg+0x561/0x800 net/netlink/genetlink.c:1067

netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2544

genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076

netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]

netlink_unicast+0x53b/0x810 net/netlink/af_netlink.c:136

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 4.9, < 4.19.307 Affected

Frequently Asked Questions

What is CVE-2024-26663?

CVE-2024-26663 is a high-severity vulnerability affecting linux linux_kernel. It was published on April 2, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-26663?

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-2024-26663?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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-2024-26663?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-26663 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.