CVE-2012-0056

CVE-2012-0056 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 6.9. Its EPSS exploit-prediction score of 11% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-264.

Key facts

Description

The mem_write function in the Linux kernel before 3.2.2, when ASLR is disabled, does not properly check permissions when writing to /proc/<pid>/mem, which allows local users to gain privileges by modifying process memory, as demonstrated by Mempodipper.

Frequently asked questions

What is CVE-2012-0056?
The mem_write function in the Linux kernel before 3.2.2, when ASLR is disabled, does not properly check permissions when writing to /proc/<pid>/mem, which allows local users to gain privileges by modifying process memory, as demonstrated by Mempodipper.
How severe is CVE-2012-0056?
CVE-2012-0056 has a CVSS 2.0 base score of 6.9, rated medium severity.
Is CVE-2012-0056 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-0056?
CVE-2012-0056 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-0056?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-0056 published?
CVE-2012-0056 was published on 2012-01-27 and last updated on 2026-06-16.

References

Affected products (1)

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