CVE-2024-36971
HIGH CISA KEVCVSS v3
7.8
HIGH
EPSS Score
—
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
In the Linux kernel, the following vulnerability has been resolved: net: fix __dst_negative_advice() race __dst_negative_advice() does not enforce proper RCU rules when sk->dst_cache must be cleared, leading to possible UAF. RCU rules are that we must first clear sk->sk_dst_cache, then call dst_release(old_dst). Note that sk_dst_reset(sk) is implementing this protocol correctly, while __dst_negative_advice() uses the wrong order. Given that ip6_negative_advice() has special logic against RT
CISA Known Exploited Vulnerability
- Date Added
- 8/7/2024
- Patch Due Date
- 8/28/2024
- Required Action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 6/10/2024
- Last Modified
- 11/5/2025
Frequently Asked Questions
What is CVE-2024-36971?
In the Linux kernel, the following vulnerability has been resolved: net: fix __dst_negative_advice() race __dst_negative_advice() does not enforce proper RCU rules when sk->dst_cache must be cleared, leading to possible UAF. RCU rules are that we must first clear sk->sk_dst_cache, then call dst_release(old_dst). Note that sk_dst_reset(sk) is implementing this protocol correctly, while __dst_negative_advice() uses the wrong order. Given that ip6_negative_advice() has special logic against RT
Is CVE-2024-36971 actively exploited?
Yes. CVE-2024-36971 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 8/28/2024.
What is the CVSS score for CVE-2024-36971?
CVE-2024-36971 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string 3.1.
Is CVE-2024-36971 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.