6.9

CVE-2012-0056: linux linux_kernel

Modified
AliasesRHSA-2012:0052RHSA-2012:0061UBUNTU-CVE-2012-0056
Published 27-01-2012Last modified 06-08-2024

Vulnerability summary

CVE-2012-0056 is a medium (CVSS 6.9) vulnerability in linux linux_kernel. EPSS estimates a 10.84% chance of exploitation in the next 30 days, higher than 95.8% of scored vulnerabilities. 2 public exploits are recorded.

Priority
Prioritiseweaponized exploit

Weaponized exploit (exploit-database, 23-01-2012)

Source freshness unavailable

How is this decided?
CVSS score
6.9/10
010
Medium · v2.0 (NVD)
EPSS score
10.84%
0%100%
Medium · +0.09 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2exploit-database

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2024:10128-1

Timeline

  1. 27-01-2012
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

10.84%

Chance of exploitation in the next 30 days

Percentile

96%

Versus all other CVEs

30-day change

Increase +0.09 pp

From 10.75% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • exploit-databaselocallinuxVerified

    Linux Kernel 2.6.39 < 3.2.2 (Gentoo / Ubuntu x86/x64) - 'Mempodipper' Local Privilege Escalation (1)

    Maturity: weaponized

  • exploit-databaselocallinuxVerified

    Linux Kernel 2.6.39 < 3.2.2 (x86/x64) - 'Mempodipper' Local Privilege Escalation (2)

    Maturity: weaponized

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.

Redhat35 products
  • kernel< 0:2.6.32-220.4.1.el6
  • kernel-bootwrapper< 0:2.6.32-220.4.1.el6
  • kernel-debug< 0:2.6.32-220.4.1.el6
  • kernel-debug-debuginfo< 0:2.6.32-220.4.1.el6
  • kernel-debug-devel< 0:2.6.32-220.4.1.el6
Ubuntu14 products
  • linux< 3.11.0-12.19 | < 4.2.0-16.19
  • linux-aws< 4.4.0-1002.2 | < 4.4.0-1001.10
  • linux-flo< 3.4.0-1.3 | < 3.4.0-5.22
  • linux-gke< 4.4.0-1003.3
  • linux-goldfish< 3.4.0-1.9 | < 3.4.0-4.27
Linux1 product

3 vendors · 50 products

References

27 links
Show all 27 references