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CVE-2017-12762

Status Candidate

Overview

In /drivers/isdn/i4l/isdn_net.c: A user-controlled buffer is copied into a local buffer of constant size using strcpy without a length check which can cause a buffer overflow. This affects the Linux kernel 4.9-stable tree, 4.12-stable tree, 3.18-stable tree, and 4.4-stable tree.

Related Files

Ubuntu Security Notice USN-3420-1
Posted Sep 19, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3420-1 - It was discovered that a buffer overflow existed in the Bluetooth stack of the Linux kernel when handling L2CAP configuration responses. A physically proximate attacker could use this to cause a denial of service. It was discovered that the Flash-Friendly File System implementation in the Linux kernel did not properly validate superblock metadata. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-1000251, CVE-2017-10663, CVE-2017-12762, CVE-2017-8831
MD5 | 50cbfd60ce8d412743faebabf34f8de2
Ubuntu Security Notice USN-3420-2
Posted Sep 18, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3420-2 - USN-3420-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. It was discovered that a buffer overflow existed in the Bluetooth stack of the Linux kernel when handling L2CAP configuration responses. A physically proximate attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-1000251, CVE-2017-10663, CVE-2017-12762, CVE-2017-8831
MD5 | e177f243659fd3ccbffa320d4a3677ca
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