UBUNTU-CVE-2017-15650

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    UBUNTU-CVE-2017-15650

    Published: 19 Oct 2017Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-15650
    Aliases:
    USN-4768-1

    Summary:

    Details: musl libc before 1.1.17 has a buffer overflow via crafted DNS replies because dns_parse_callback in network/lookup_name.c does not restrict the number of addresses, and thus an attacker can provide an unexpected number by sending A records in a reply to an AAAA query.

    References: https://ubuntu.com/security/CVE-2017-15650, https://git.musl-libc.org/cgit/musl/patch/?id=45ca5d3fcb6f874bf5ba55d0e9651cef68515395, http://git.musl-libc.org/cgit/musl/commit/?id=45ca5d3fcb6f874bf5ba55d0e9651cef68515395, http://git.musl-libc.org/cgit/musl/tree/WHATSNEW, http://openwall.com/lists/oss-security/2017/10/19/5, https://www.cve.org/CVERecord?id=CVE-2017-15650, https://ubuntu.com/security/notices/USN-4768-1

    Affected packages

    Package

    Name: musl

    Purl: pkg:deb/ubuntu/[email protected]~esm2?arch=source&distro=esm-apps/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.1.9-1ubuntu0.1~esm2

    Affected versions

    1.1.9-1

    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