Red Hat Enterprise Linux vulnerabilities

CVE-2017-5645 Critical · 9.8 Public exploit CWE-502 Apr 17, 2017

Deserialization of Untrusted Data in Apache Software Foundation Log4j

In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.

CVE-2016-2568 High · 7.8 CWE-116 Feb 13, 2017

Improper Encoding or Escaping of Output in Freedesktop Polkit

pkexec, when used with --user nonpriv, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.

CVE-2016-5195 High · 7.0 KEV Urgent · 70 Public exploit CWE-362 Nov 10, 2016

Linux Kernel Race Condition Vulnerability

Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect handling of a copy-on-write (COW) feature to write to a read-only memory mapping, as exploited in the wild in October 2016, aka "Dirty COW."

CVE-2015-5287 High · 7.8 KEV Urgent · 75 Public exploit CWE-59 Dec 7, 2015

Red Hat Automatic Bug Reporting Tool Privilege Escalation Vulnerability

The abrt-hook-ccpp help program in Automatic Bug Reporting Tool (ABRT) before 2.7.1 allows local users with certain permissions to gain privileges via a symlink attack on a file with a predictable name, as demonstrated by /var/tmp/abrt/abrt-hax-coredump or /var/spool/abrt/abrt-hax-coredump.

CVE-2015-3246 High · 7.4 KEV Urgent · 75 Public exploit CWE-264 Aug 11, 2015

Red Hat Libuser Race Condition Vulnerability

libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, directly modifies /etc/passwd, which allows local users to cause a denial of service (inconsistent file state) by causing an error during the modification. NOTE: this issue can be combined with CVE-2015-3245 to gain privileges.

CVE-2015-5477 High · 7.5 KEV Urgent · 79 Public exploit CWE-19 Jul 29, 2015

ISC BIND Data Processing Errors Vulnerability

named in ISC BIND 9.x before 9.9.7-P2 and 9.10.x before 9.10.2-P3 allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) via TKEY queries.

CVE-2014-7169 Critical · 9.8 KEV Urgent · 77 Public exploit CWE-78 Sep 24, 2014

GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability

GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment variables, which allows remote attackers to write to files or possibly have unknown other impact via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271.

CVE-2014-6271 Critical · 9.8 KEV Urgent · 83 Public exploit CWE-78 Sep 24, 2014

GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability

GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution, aka "ShellShock." NOTE: the original fix for this issue was incorrect; CVE-2014-7169 has been assigned to cover the vulnerability that is still present after the incorrect fix.

CVE-2014-0196 Medium · 5.5 KEV High · 67 Public exploit CWE-362 May 7, 2014

Linux Kernel Race Condition Vulnerability

The n_tty_write function in drivers/tty/n_tty.c in the Linux kernel through 3.14.3 does not properly manage tty driver access in the "LECHO & !OPOST" case, which allows local users to cause a denial of service (memory corruption and system crash) or gain privileges by triggering a race condition involving read and write operations with long strings.

CVE-2010-3904 High · 7.8 KEV Urgent · 76 Public exploit CWE-1284 Dec 6, 2010

Linux Kernel Improper Input Validation Vulnerability

The rds_page_copy_user function in net/rds/page.c in the Reliable Datagram Sockets (RDS) protocol implementation in the Linux kernel before 2.6.36 does not properly validate addresses obtained from user space, which allows local users to gain privileges via crafted use of the sendmsg and recvmsg system calls.