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CVE-2016-2383

Status Candidate

Overview

The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.

Related Files

Ubuntu Security Notice USN-2947-1
Posted Apr 6, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2947-1 - Ralf Spenneberg discovered that the usbvision driver in the Linux kernel did not properly sanity check the interfaces and endpoints reported by the device. An attacker with physical access could cause a denial of service (system crash). Venkatesh Pottem discovered a use-after-free vulnerability in the Linux kernel's CXGB3 driver. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-7833, CVE-2015-8812, CVE-2016-2085, CVE-2016-2383, CVE-2016-2550, CVE-2016-2847
SHA-256 | 1589a71a5392734b1ae81742ea08c3d1505de7730a5f381c44076a2fbb5cda36
Ubuntu Security Notice USN-2947-3
Posted Apr 6, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2947-3 - Ralf Spenneberg discovered that the usbvision driver in the Linux kernel did not properly sanity check the interfaces and endpoints reported by the device. An attacker with physical access could cause a denial of service (system crash). Venkatesh Pottem discovered a use-after-free vulnerability in the Linux kernel's CXGB3 driver. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-7833, CVE-2015-8812, CVE-2016-2085, CVE-2016-2383, CVE-2016-2550, CVE-2016-2847
SHA-256 | 8e332a027893fa2b8bfdfdd28766726d47bc3892017b1859881263fdd0532d37
Ubuntu Security Notice USN-2947-2
Posted Apr 6, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2947-2 - Ralf Spenneberg discovered that the usbvision driver in the Linux kernel did not properly sanity check the interfaces and endpoints reported by the device. An attacker with physical access could cause a denial of service (system crash). Venkatesh Pottem discovered a use-after-free vulnerability in the Linux kernel's CXGB3 driver. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-7833, CVE-2015-8812, CVE-2016-2085, CVE-2016-2383, CVE-2016-2550, CVE-2016-2847
SHA-256 | a1cd9bf0ef18c2c6d6e9125dc56451016c28dacccc9581b62fb421f6ee77a750
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