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    CVE-2009-2846

    The eisa_eeprom_read function in the parisc isa-eeprom component (drivers/parisc/eisa_eeprom.c) in the Linux kernel before 2.6.31-rc6 allows local users to access restricted memory via a negative ppos argument, which bypasses a check that assumes that ppos is positive and causes an out-of-bounds read in the readb function.

    Published:Aug 18, 2009
    Last Modified:Apr 23, 2026
    EPS:Aug 18, 2009
    EPSS Score:0.00314
    CVSS Score:7.8

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=6b4dbcd86a9d464057fcc7abe4d0574093071fcc
    http://secunia.com/advisories/37105
    http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
    http://www.openwall.com/lists/oss-security/2009/08/10/1
    http://www.openwall.com/lists/oss-security/2009/08/18/6
    http://www.ubuntu.com/usn/USN-852-1
    https://exchange.xforce.ibmcloud.com/vulnerabilities/52906
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=6b4dbcd86a9d464057fcc7abe4d0574093071fcc
    http://secunia.com/advisories/37105
    http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
    http://www.openwall.com/lists/oss-security/2009/08/10/1
    http://www.openwall.com/lists/oss-security/2009/08/18/6
    http://www.ubuntu.com/usn/USN-852-1
    https://exchange.xforce.ibmcloud.com/vulnerabilities/52906

    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