UBUNTU-CVE-2018-1000877

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    UBUNTU-CVE-2018-1000877

    Published: 20 Dec 2018Last Modified: 22 Apr 2026
    Aliases:
    USN-3859-1

    Summary:

    Details: libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-415: Double Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c, parse_codes(), realloc(rar->lzss.window, new_size) with new_size = 0 that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted RAR archive.

    References: https://ubuntu.com/security/CVE-2018-1000877, https://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909, https://github.com/libarchive/libarchive/pull/1105, https://ubuntu.com/security/notices/USN-3859-1, https://www.cve.org/CVERecord?id=CVE-2018-1000877

    Affected packages

    Package

    Name: libarchive

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.1.2-7ubuntu2.7

    Affected versions

    3.1.2-5ubuntu1
    3.1.2-7ubuntu1
    3.1.2-7ubuntu2
    3.1.2-7ubuntu2.1
    3.1.2-7ubuntu2.2
    3.1.2-7ubuntu2.3
    3.1.2-7ubuntu2.4
    3.1.2-7ubuntu2.6

    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