Vulnerability Snapshot
CVE-2024-57802 is rated CRITICAL — exploitation is trivial or already observed in the wild and impact is severe. Patch immediately, not on the next maintenance window.
Affected technology: linux_kernel.
Executive Summary
In the Linux kernel, the following vulnerability has been resolved:
netrom: check buffer length before accessing it
Syzkaller reports an uninit value read from ax25cmp when sending raw message
through ieee802154 implementation.
=====================================================
BUG: KMSAN: uninit-value in ax25cmp+0x3a5/0x460 net/ax25/ax25_addr.c:119
ax25cmp+0x3a5/0x460 net/ax25/ax25_addr.c:119
nr_dev_get+0x20e/0x450 net/netrom/nr_route.c:601
nr_route_frame+0x1a2/0xfc0 net/netrom/nr_route.c:774
nr_xmit+0x5a/0x1c0 net/netrom/nr_dev.c:144
__netdev_start_xmit include/linux/netdevice.h:4940 [inline]
netdev_start_xmit include/linux/netdevice.h:4954 [inline]
xmit_one net/core/dev.c:3548 [inline]
dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564
__dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349
dev_queue_xmit include/linux/netdevice.h:3134 [inline]
raw_sendmsg+0x654/0xc10 net/ieee802154/socket.c:299
ieee802154_sock_sendmsg+0x91/0xc0 net/ieee802154/socket.c:96
sock_sendmsg
Why It Matters
CVE-2024-57802 is rated CRITICAL severity, requiring immediate attention from security teams.
CVSS Base Score: 9.4/10
Affected Technologies
Vendors: linux
Products: linux_kernel
🛡️What Defenders Should Check
Use Vulnios to continuously monitor your exposure to CVE-2024-57802 and similar vulnerabilities.
References & Sources
How Vulnios Detects This
Vulnios scans for this vulnerability using Trivy and Grype for CVE matching against your container images and OS package manifests. Run a scan against your environment to see whether you are exposed; findings are linked back to the original CVE record so triage starts with the patch path already known.
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Affected Products
Sources
Related Threat Alerts
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Frequently Asked Questions
What is CVE-2024-57802?
CVE-2024-57802 is a critical-severity vulnerability tracked under the Common Vulnerabilities and Exposures program. In the Linux kernel, the following vulnerability has been resolved:
netrom: check buffer length before accessing it
Syzkaller reports an uninit value read from ax25cmp when sending raw message
throu
Am I affected?
Check whether your environment runs linux_kernel. If you operate any of those, treat yourself as in scope until you have evidence otherwise. A Vulnios scan will identify the exact assets carrying the affected version.
How urgent is the response?
Critical: do not wait for your normal patch cycle. Verify exposure today, apply the vendor patch immediately, and add detection rules for any post-exploit indicators.
How do I remediate?
Apply the vendor patch listed in the upstream advisory linked under Sources. If the patch is not yet available, follow the vendor-supplied workaround (often a config flag or feature disable) and add detections for the published exploit pattern in your SIEM. Re-scan after the patch lands to confirm the finding clears.
Where can I track exploitation activity?
Watch CISA's Known Exploited Vulnerabilities catalog for CVE-2024-57802. Cross-reference with public exploit databases and your own SIEM/IDS for indicator-of-compromise patterns. Vulnios tracks KEV status automatically and surfaces it on the asset findings view.
How does Vulnios help with this?
Vulnios continuously cross-references your asset inventory against the live CVE feed (NVD, vendor advisories, CISA KEV, and curated OSINT). When a new CVE matches your environment, you get a prioritized finding with the severity, KEV status, exploit-prediction (EPSS), and a direct path to the vendor patch. You can start a free scan from the homepage.
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