CVE Feed

    Dashboard / CVE / CVE-2012-0056

    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.

    Published:Jan 18, 2012
    Last Modified:Apr 11, 2025
    EPS:Jan 27, 2012
    EPSS Score:0.81559
    CVSS Score:6.9

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Mrg

    Exploits

    https://www.exploit-db.com/exploits/18411https://github.com/pythonone/CVE-2012-0056https://github.com/srclib/CVE-2012-0056https://www.exploit-db.com/exploits/35161

    Common Weakness Enumeration

    CWE-863 Incorrect Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-80925 — In the Linux kernel, the following vulnerability has been resolved: vlan: fix skb_under_panic and races when …
    CVE-2026-80924 (CVSS 7.5) — In the Linux kernel, the following vulnerability has been resolved: crypto: krb5 - use kfree_sensitive() for …
    CVE-2026-80923 — In the Linux kernel, the following vulnerability has been resolved: xhci: dbgtty: Fix unregister on tty_regis…
    CVE-2026-80922 — In the Linux kernel, the following vulnerability has been resolved: crypto: qcom-rng - Allow zero as a random…
    CVE-2026-80921 (CVSS 8.8) — In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits …
    CVE-2026-80920 — In the Linux kernel, the following vulnerability has been resolved: io_uring: defer eventfd signaling when qu…
    CVE-2026-80919 — In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix recursive ww_mutex acquir…
    CVE-2026-80918 — In the Linux kernel, the following vulnerability has been resolved: HID: core: fix number/pointer type confus…
    CVE-2026-80917 — In the Linux kernel, the following vulnerability has been resolved: PCI: host-generic: Fix NULL pointer deref…
    CVE-2026-80916 — In the Linux kernel, the following vulnerability has been resolved: kcov: fix data corruption and race condit…

    References

    http://blog.zx2c4.com/749
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=e268337dfe26dfc7efd422a804dbb27977a3cccc
    http://secunia.com/advisories/47708
    http://ubuntu.com/usn/usn-1336-1
    http://www.kb.cert.org/vuls/id/470151
    http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2
    http://www.openwall.com/lists/oss-security/2012/01/18/1
    http://www.openwall.com/lists/oss-security/2012/01/18/2
    http://www.openwall.com/lists/oss-security/2012/01/19/4
    http://www.openwall.com/lists/oss-security/2012/01/22/4
    http://www.redhat.com/support/errata/RHSA-2012-0052.html
    http://www.redhat.com/support/errata/RHSA-2012-0061.html
    http://www.securityfocus.com/bid/51625
    https://bugzilla.redhat.com/show_bug.cgi?id=782642
    http://blog.zx2c4.com/749
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=e268337dfe26dfc7efd422a804dbb27977a3cccc
    http://secunia.com/advisories/47708
    http://ubuntu.com/usn/usn-1336-1
    http://www.kb.cert.org/vuls/id/470151
    http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2
    http://www.openwall.com/lists/oss-security/2012/01/18/1
    http://www.openwall.com/lists/oss-security/2012/01/18/2
    http://www.openwall.com/lists/oss-security/2012/01/19/4
    http://www.openwall.com/lists/oss-security/2012/01/22/4
    http://www.redhat.com/support/errata/RHSA-2012-0052.html
    http://www.redhat.com/support/errata/RHSA-2012-0061.html
    http://www.securityfocus.com/bid/51625
    https://bugzilla.redhat.com/show_bug.cgi?id=782642

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High