CVE-2013-2094 Linux Kernel: privilege escalation
In plain words: Something running with limited rights can promote itself to full control. Turns a small foothold (like a malicious app) into administrator or system-level access.
Confirmed exploited by CISA on · US federal patch deadline Oct 6, 2022
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. This one is aimed at devices or apps of the kind people own.
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 Privilege Escalation Vulnerability
- Product
- Linux Kernel
- CISA description
- Linux kernel fails to check all 64 bits of attr.config passed by user space, resulting to out-of-bounds access of the perf_swevent_enabled array in sw_perf_event_destroy(). Explotation allows for privilege escalation.
- Type of flaw
- Privilege escalation (CWE-189)
- Confirmed exploited
- Sep 15, 2022
- US federal patch deadline
- Oct 6, 2022
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Answering about CVE-2013-2094 ·
Questions about CVE-2013-2094
Is CVE-2013-2094 being exploited?
Yes. CISA added CVE-2013-2094 to its Known Exploited Vulnerabilities catalog on Sep 15, 2022, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2013-2094?
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-2013-2094?
Only if you use Linux Kernel. This one is aimed at devices or apps of the kind people own.