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Debian LTS Advisory ([SECURITY] [DLA 1369-1] linux security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2017-0861 Robb Glasser reported a potential use-after-free in the ALSA (sound) PCM core. We believe this was not possible in practice. CVE-2017-5715 Multiple researchers have discovered a vulnerability in various processors supporting speculative execution, enabling an attacker controlling an unprivileged process to read memory from arbitrary addresses, including from the kernel and all other processes running on the system. This specific attack has been named Spectre variant 2 (branch target injection) and is mitigated for the x86 architecture (amd64 and i386) by using the 'retpoline' compiler feature which allows indirect branches to be isolated from speculative execution. CVE-2017-13166 A bug in the 32-bit compatibility layer of the v4l2 ioctl handling code has been found. Memory protections ensuring user-provided buffers always point to userland memory were disabled, allowing destination addresses to be in kernel space. On a 64-bit kernel (amd64 flavour) a local user with access to a suitable video device can exploit this to overwrite kernel memory, leading to privilege escalation. Description truncated. Please see the references for more information.
Affected Software
Affected Software
linux on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For Debian 7 'Wheezy', these problems have been fixed in version 3.2.101-1. This version also includes bug fixes from upstream versions up to and including 3.2.101. It also fixes a regression in the procfs hidepid option in the previous version (Debian bug #887106). We recommend that you upgrade your linux packages.
Common Vulnerabilities and Exposures (CVE)
- CVE-2017-0861
- CVE-2017-13166
- CVE-2017-16526
- CVE-2017-16911
- CVE-2017-16912
- CVE-2017-16913
- CVE-2017-16914
- CVE-2017-18017
- CVE-2017-18203
- CVE-2017-18216
- CVE-2017-5715
- CVE-2017-5753
- CVE-2018-1000004
- CVE-2018-1000199
- CVE-2018-1068
- CVE-2018-1092
- CVE-2018-5332
- CVE-2018-5333
- CVE-2018-5750
- CVE-2018-5803
- CVE-2018-6927
- CVE-2018-7492
- CVE-2018-7566
- CVE-2018-7740
- CVE-2018-7757
- CVE-2018-7995
- CVE-2018-8781
- CVE-2018-8822