UBUNTU-CVE-2015-1593

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    UBUNTU-CVE-2015-1593

    Published: 16 Mar 2015Last Modified: 26 Aug 2026
    Upstream:
    CVE-2015-1593
    Aliases:
    USN-2560-1
    USN-2561-1
    USN-2562-1

    Summary:

    Details: The stack randomization feature in the Linux kernel before 3.19.1 on 64-bit platforms uses incorrect data types for the results of bitwise left-shift operations, which makes it easier for attackers to bypass the ASLR protection mechanism by predicting the address of the top of the stack, related to the randomize_stack_top function in fs/binfmt_elf.c and the stack_maxrandom_size function in arch/x86/mm/mmap.c.

    References: https://ubuntu.com/security/CVE-2015-1593, http://www.openwall.com/lists/oss-security/2015/02/13/13, http://hmarco.org/bugs/linux-ASLR-integer-overflow.html, http://hmarco.org/bugs/patches/fix_randomize_stack_top_properly_linux_3-17.1.patch, https://ubuntu.com/security/notices/USN-2560-1, https://ubuntu.com/security/notices/USN-2561-1, https://ubuntu.com/security/notices/USN-2562-1, https://ubuntu.com/security/notices/USN-2563-1, https://ubuntu.com/security/notices/USN-2564-1, https://ubuntu.com/security/notices/USN-2565-1, https://www.cve.org/CVERecord?id=CVE-2015-1593

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-49.81

    Affected versions

    3.11.0-12.19

    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