PT-2016-3847 · Linux+2 · Linux Kernel+2

Martin Prpič · Published 2015-10-09 · Updated 2016-11-28 · CVE-2015-8019

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions 3.14.54 and 3.18.22

Description The issue is related to the skb copy and csum datagram iovec function in net/core/datagram.c, which does not accept a length argument. This allows local users to cause a denial of service, potentially resulting in memory corruption, via a write system call followed by a recvmsg system call.

Recommendations For Linux kernel version 3.14.54, update to a version that includes a fix for this issue. For Linux kernel version 3.18.22, update to a version that includes a fix for this issue. As a temporary workaround, consider restricting access to the skb copy and csum datagram iovec function until a patch is available.

Exploit

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2015-1849

CVE-2015-8019

SUSE-SU-2016:1961-1

SUSE-SU-2016:1994-1

SUSE-SU-2016:1995-1

SUSE-SU-2016:2005-1

SUSE-SU-2016:2009-1

Affected Products

Alt Linux

Linux Kernel

Suse

References · 136

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/overlayfs_priv_esc.rb · Exploit
• 🔥 https://github.com/fi01/CVE-2015-3636 · Exploit
• 🔥 https://github.com/android-rooting-tools/libpingpong_exploit · Exploit
• 🔥 https://github.com/a7vinx/CVE-2015-3636 · Exploit
• 🔥 https://github.com/askk/libping_unhash_exploit_POC · Exploit
• 🔥 https://github.com/hhj4ck/CVE-2016-2067 · Exploit
• 🔥 https://github.com/elit3pwner/CVE-2015-1328-GoldenEye · Exploit
• 🔥 https://github.com/x1ns4n3/CVE-2015-1328-GoldenEye · Exploit
• 🔥 https://github.com/0x1ns4n3/CVE-2015-1328-GoldenEye · Exploit
• 🔥 https://github.com/betalphafai/CVE-2015-0568 · Exploit
• 🔥 https://github.com/betalphafai/cve-2015-3636_crash · Exploit
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6787 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8019 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3291 · Security Note
• https://bdu.fstec.ru/vul/2016-02099 · Security Note