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[ CVE-2013-6282 · Published 20 Nov 2013 ]

Linux Kernel Improper Input Validation Vulnerability

Exploited · CISA KEV CVSS 8.8 EPSS 40%Fix available

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-09-15
  • EPSS: 40% chance of exploitation in the next 30 days (higher than 99% of CVEs)

[ Description ]Official description

The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addresses, which allows attackers to read or modify the contents of arbitrary kernel memory locations via a crafted application, as exploited in the wild against Android devices in October and November 2013.

CISA: The get_user and put_user API functions of the Linux kernel fail to validate the target address when being used on ARM v6k/v7 platforms. This allows an application to read and write kernel memory which could lead to privilege escalation.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 6 Oct 2022): Apply updates per vendor instructions.

[ References ]References