Debian 10: DSA-4774-1 Critical: Linux Kernel Security Issues
debian
October 19, 2020
Several vulnerabilities have been discovered in the Linux kernel that may lead to the execution of arbitrary code, privilege escalation, denial of service or information leaks
Summary
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 Bluetooth device address can
send a malicious l2cap packet and cause a denial of service or
possibly arbitrary code execution with kernel privileges.
CVE-2020-12352
Andy Nguyen discovered a 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
Bluetooth device address 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 cause a denial
of service.
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 may lead to memory ...
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Severity
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Package: linux
CVE ID: CVE-2020-12351 CVE-2020-12352 CVE-2020-25211 CVE-2020-25643
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