CVE-2024-1086 Linux Kernel: memory-safety flaw
In plain words: The program mishandles the memory it uses to keep track of data. A specially made input can scramble that memory. Usually lets an attacker crash the program or run their own code with its permissions.
Confirmed exploited by CISA on · US federal patch deadline Jun 20, 2024
What to do
- Install Linux's security update for Kernel. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Turn on automatic updates for the operating system and for Office, PDF and archive apps.
- Be careful with unexpected attachments — documents, .zip/.rar files and shortcuts are common bait.
- Use a normal (non-admin) account day to day and keep built-in protection like Microsoft Defender on.
Who is affected
Could reach you. Used in ransomware, which spreads to ordinary people and small businesses.
What's at risk: Your files, saved passwords and accounts. Many of these let a program that is already running gain full administrator control.
The details
- Official name
- Linux Kernel Use-After-Free Vulnerability
- Product
- Linux Kernel
- CISA description
- Linux kernel contains a use-after-free vulnerability in the netfilter: nf_tables component that allows an attacker to achieve local privilege escalation.
- Type of flaw
- Memory-safety flaw (CWE-416)
- Confirmed exploited
- May 30, 2024 — known to be used in ransomware attacks
- US federal patch deadline
- Jun 20, 2024
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Answering about CVE-2024-1086 ·
Questions about CVE-2024-1086
Is CVE-2024-1086 being exploited?
Yes. CISA added CVE-2024-1086 to its Known Exploited Vulnerabilities catalog on May 30, 2024, which means there is reliable evidence of real-world attacks, including by ransomware groups.
How do I fix CVE-2024-1086?
Install Linux's security update for Kernel. If no update exists, follow the vendor's workaround or stop using the product until one ships. Turn on automatic updates for the operating system and for Office, PDF and archive apps.
Am I affected by CVE-2024-1086?
Only if you use Linux Kernel. Used in ransomware, which spreads to ordinary people and small businesses.