Package: linux
CVE ID: CVE-2020-12351 CVE-2020-12352 CVE-2020-25211 CVE-2020-25643 CVE-2020-25645

Several vulnerabilities have been discovered in the Linux kernel that
may lead to a privilege escalation, denial of service or information
leaks.

CVE-2020-12351

    Andy Nguyen discovered a flaw in the Bluetooth implementation in the
    way L2CAP packets with A2MP CID are handled. A remote attacker in
    short distance knowing the victim's bd address can send a malicious
    l2cap packet and cause denial of service or possibly arbitrary code
    execution with kernel privileges.

CVE-2020-12352

    Andy Nguyen discovered flaw in the Bluetooth implementation. Stack
    memory is not properly initialised when handling certain AMP
    packets. A remote attacker in short distance knowing the victim's bd
    address can retrieve kernel stack information.

CVE-2020-25211

    A flaw was discovered in netfilter subsystem. A local attacker able
    to inject conntrack netlink configuration can take advantage of this
    flaw to cause a denial of service or trigger use of of incorrect
    protocol numbers.

CVE-2020-25643

    ChenNan Of Chaitin Security Research Lab discovered a flaw in the
    hdlc_ppp module. Improper input validation in the ppp_cp_parse_cr
    function leads to memory corruption and read overflow.

CVE-2020-25645

    A flaw was discovered in the interface driver for GENEVE
    encapsulated traffic when combined with IPsec. When IPsec is
    configured to encrypt traffic for the specific UDP port used by the
    GENEVE tunnel, tunneled data isn't correctly routed over the
    encrypted link and sent unencrypted instead.

The vulnerabilities are fixed by rebasing to the new
stable upstream version 4.19.152 which includes additional bugfixes.