CVE-2019-5597

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    CVE-2019-5597

    Published: 15 May 2019Last Modified: 4 Jun 2024

    Summary:

    Details: In FreeBSD 11.3-PRERELEASE and 12.0-STABLE before r347591, 11.2-RELEASE before 11.2-RELEASE-p10, and 12.0-RELEASE before 12.0-RELEASE-p4, a bug in the pf IPv6 fragment reassembly logic incorrectly uses the last extension header offset from the last received packet instead of the first packet allowing maliciously crafted IPv6 packets to cause a crash or potentially bypass the packet filter.

    References: http://packetstormsecurity.com/files/152933/FreeBSD-Security-Advisory-FreeBSD-SA-19-05.pf.html, https://security.FreeBSD.org/advisories/FreeBSD-SA-19:05.pf.asc, https://security.netapp.com/advisory/ntap-20190611-0001/, https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html, https://www.synacktiv.com/ressources/Synacktiv_OpenBSD_PacketFilter_CVE-2019-5597_ipv6_frag.pdf, http://www.securityfocus.com/bid/108395

    Affected packages

    Package

    Name: kfreebsd-10

    Purl: pkg:deb/debian/kfreebsd-10?arch=source

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    10.3~svn300087+ds1-1

    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