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CVE-2024-26663

7.8 · HIGH

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]:…

Published Apr 2, 2024CWE-476EPSS 0.25%

Overview

CVE-2024-26663 is a high-severity vulnerability. 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, 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/0cd331dfd6023640c9669d0592bc0fd491205f87Refgit.kernel.org/stable/c/19d7314f2fb9515bdaac9829d4d8eb34edd1fe95Refgit.kernel.org/stable/c/24ec8f0da93b8a9fba11600be8a90f0d73fb46f1Refgit.kernel.org/stable/c/3871aa01e1a779d866fa9dfdd5a836f342f4eb87Refgit.kernel.org/stable/c/3d3a5b31b43515b5752ff282702ca546ec3e48b6Refgit.kernel.org/stable/c/6f70f0b412458c622a12d4292782c8e92e210c2fRefgit.kernel.org/stable/c/888e3524be87f3df9fa3c083484e4b62b3e3bb59Refgit.kernel.org/stable/c/c1701ea85ef0ec7be6a1b36c7da69f572ed2fd12Refgit.kernel.org/stable/c/0cd331dfd6023640c9669d0592bc0fd491205f87Refgit.kernel.org/stable/c/19d7314f2fb9515bdaac9829d4d8eb34edd1fe95

How CyberStrike helps

Frequently asked questions

What is CVE-2024-26663?

CVE-2024-26663 is a high-severity vulnerability. 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, 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-2024-26663?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-26663 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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