CVE-2017-2636

A race condition flaw was found in the NHLDC Linux kernel driver when accessing nhdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system. Mitigation The nhdlc kern...

Denial Of Service (DoS)

kernel is vulnerable to denial of service DoS attacks. The vulnerability exists as a race condition in drivers/tty/nhdlc.c in the Linux kernel through 4.10.1 allows local users to gain privileges or cause a denial of service double free by setting the HDLC line discipline...

CVE-2017-13687

The Cisco HDLC parser in tcpdump before 4.9.2 has a buffer over-read in print-chdlc.c:chdlcprint...

CVE-2017-13687

The Cisco HDLC parser in tcpdump before 4.9.2 has a buffer over-read in print-chdlc.c:chdlcprint...

Design/Logic Flaw

The Cisco HDLC parser in tcpdump before 4.9.2 has a buffer over-read in print-chdlc.c:chdlcprint...

CVE-2017-13687

The Cisco HDLC parser in tcpdump before 4.9.2 has a buffer over-read in print-chdlc.c:chdlcprint...

CVE-2017-13687

CVE-2017-13687 affects tcpdump, specifically the Cisco HDLC parser: a buffer over-read in print-chdlc.c:chdlc_print() present in tcpdump prior to version 4.9.2. Connected documents confirm this is tied to the Cisco HDLC parser within tcpdump and describe the vulnerability as a buffer over-read/ov...

CVE-2017-13687

The Cisco HDLC parser in tcpdump before 4.9.2 has a buffer over-read in print-chdlc.c:chdlcprint...

CVE-2017-13687

The Cisco HDLC parser in tcpdump before 4.9.2 has a buffer over-read in print-chdlc.c:chdlcprint...

CVE-2017-13687

The Cisco HDLC parser in tcpdump before 4.9.2 has a buffer over-read in print-chdlc.c:chdlcprint...

Updated tcpdump packages fix security vulnerabilities

Summary for 4.9.2 tcpdump release Do not use getprotobynumber for protocol name resolution. Do not do any protocol name resolution if -n is specified. Improve errors detection in the test scripts. Fix a segfault with OpenSSL 1.1 and improve OpenSSL usage. Clean up IS-IS printing. Fix buffer...

kernel: Race condition access to n_hdlc.tbuf causes double free in n_hdlc_release()

A race condition flaw was found in the NHLDC Linux kernel driver when accessing nhdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system...

kernel: Race condition access to n_hdlc.tbuf causes double free in n_hdlc_release()

A race condition flaw was found in the NHLDC Linux kernel driver when accessing nhdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system...

RHEL 7 : kernel (RHSA-2017:1125)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2017:1125 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: A race condition flaw was found in the NHLDC...

kernel: Race condition access to n_hdlc.tbuf causes double free in n_hdlc_release()

A race condition flaw was found in the NHLDC Linux kernel driver when accessing nhdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system...

Important: Red Hat Security Advisory: kernel-rt security and bug fix update

An update for kernel-rt is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

kernel: Race condition access to n_hdlc.tbuf causes double free in n_hdlc_release()

A race condition flaw was found in the NHLDC Linux kernel driver when accessing nhdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system...

Updated kernel-linus packages fixes security vulnerabilities

This kernel-linus update is based on upstream 4.4.55 and fixes at least the following security issues: Race condition in drivers/tty/nhdlc.c in the Linux kernel through 4.10.1 allows local users to gain privileges or cause a denial of service double free by setting the HDLC line discipline...

CVE-2017-2636

Race condition in drivers/tty/nhdlc.c in the Linux kernel through 4.10.1 allows local users to gain privileges or cause a denial of service double free by setting the HDLC line discipline...

DEBIAN-CVE-2017-2636

Race condition in drivers/tty/nhdlc.c in the Linux kernel through 4.10.1 allows local users to gain privileges or cause a denial of service double free by setting the HDLC line discipline...