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CVE-2016-4805

Status Candidate

Overview

Use-after-free vulnerability in drivers/net/ppp/ppp_generic.c in the Linux kernel before 4.5.2 allows local users to cause a denial of service (memory corruption and system crash, or spinlock) or possibly have unspecified other impact by removing a network namespace, related to the ppp_register_net_channel and ppp_unregister_channel functions.

Related Files

Ubuntu Security Notice USN-3021-2
Posted Jun 28, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3021-2 - Andrey Konovalov discovered that the CDC Network Control Model USB driver in the Linux kernel did not cancel work events queued if a later error occurred, resulting in a use-after-free. An attacker with physical access could use this to cause a denial of service (system crash). Kangjie Lu discovered an information leak in the core USB implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-3951, CVE-2016-4482, CVE-2016-4565, CVE-2016-4569, CVE-2016-4578, CVE-2016-4580, CVE-2016-4805, CVE-2016-4913
SHA-256 | a1920ccfc4f4c6e5f276bfd5d75431b8b3ae7cb57f8387df52a131fbfbe2120f
Ubuntu Security Notice USN-3021-1
Posted Jun 28, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3021-1 - Andrey Konovalov discovered that the CDC Network Control Model USB driver in the Linux kernel did not cancel work events queued if a later error occurred, resulting in a use-after-free. An attacker with physical access could use this to cause a denial of service (system crash). Kangjie Lu discovered an information leak in the core USB implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-3951, CVE-2016-4482, CVE-2016-4565, CVE-2016-4569, CVE-2016-4578, CVE-2016-4580, CVE-2016-4805, CVE-2016-4913
SHA-256 | a58aea903cc903ad65202dc2ce64c473a75d915b0fa02a508452f77673343643
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