A flaw was found in the bash functionality that evaluates specially formatted environment variables passed to it from another environment. An attacker could use this feature to override or bypass restrictions to the environment to execute shell commands before restrictions have been applied. Certain services and applications allow remote unauthenticated attackers to provide environment variables, allowing them to exploit this issue.
Acknowledgements:
Red Hat would like to thank Stephane Chazelas for reporting this issue.
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 modcgi and modcgid 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.
Unspecified vulnerability in IBM Java 8 before SR1, 7 R1 before SR2 FP11, 7 before SR9, 6 R1 before SR8 FP4, 6 before SR16 FP4, and 5.0 before SR16 FP10 allows remote attackers to gain privileges via unknown vectors related to the Java Virtual Machine.
An out-of-bounds read flaw was found in the way Expat processed certain input. A remote attacker could send specially crafted XML that, when parsed by an application using the Expat library, would cause that application to crash or, possibly, execute arbitrary code with the permission of the user running the application.
The DispatchWrite function in proxy/dispatcher/idirectfbsurfacedispatcher.c in DirectFB 1.4.4 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via the Voodoo interface, which triggers an out-of-bounds write.
Multiple integer signedness errors in the DispatchWrite function in proxy/dispatcher/idirectfbsurfacedispatcher.c in DirectFB 1.4.13 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via the Voodoo interface, which triggers a stack-based buffer overflow.
As per upstream samba advisory:
All versions of Samba from 3.5.0 to 4.2.0rc4 are vulnerable to an unexpected code execution vulnerability in the smbd file server daemon.
A malicious client could send packets that may set up the stack in such a way that the freeing of memory in a subsequent anonymous netlogon packet could allow execution of arbitrary code. This code would execute with root privileges.
Last updated 24 July 2024
Last updated 24 July 2024
Last updated 24 July 2024
All existing releases of GraphicsMagick and ImageMagick support a file open syntax where if the first character of the file specification is a '|', then the remainder of the filename is passed to the shell for execution using the POSIX popen(3C) function. File opening is handled by an OpenBlob() function in the source file blob.c. Unlike the vulnerability described by CVE-2016-3714, this functionality is supported by the core file opening function rather than a delegates subsystem usually used to execute external programs.
References:
http://seclists.org/oss-sec/2016/q2/432
A stack overflow vulnerability was found in nan functions that could cause applications which process long strings with the nan function to crash or, potentially, execute arbitrary code.
Upstream bug:
https://sourceware.org/bugzilla/showbug.cgi?id=16962
CVE assignment:
http://seclists.org/oss-sec/2016/q1/153
ext/libxml/libxml.c in PHP before 5.5.22 and 5.6.x before 5.6.6, when PHP-FPM is used, does not isolate each thread from libxmldisableentityloader changes in other threads, which allows remote attackers to conduct XML External Entity (XXE) and XML Entity Expansion (XEE) attacks via a crafted XML document, a related issue to CVE-2015-5161.
A stack overflow vulnerability in the catopen function was found, causing applications which pass long strings to the catopen function to crash or, potentially execute arbitrary code.
Upstream bug:
https://sourceware.org/bugzilla/showbug.cgi?id=17905
CVE assignment:
http://seclists.org/oss-sec/2016/q1/153
It was found that out-of-range time values passed to the strftime function may cause it to crash, leading to a denial of service, or potentially disclosure information.
Upstream bug:
https://sourceware.org/bugzilla/showbug.cgi?id=18985
CVE assignment:
http://seclists.org/oss-sec/2016/q1/153
An integer overflow vulnerability was found in hcreate and hcreater which can result in an out-of-bound memory access. This could lead to application crashes or, potentially, arbitrary code execution.
Upstream bug:
https://sourceware.org/bugzilla/showbug.cgi?id=18240
CVE assignment:
http://seclists.org/oss-sec/2016/q1/153
The following flaw was reported for IBM JDK:
A flaw in the IBM J9 JVM allows code to invoke non-public interface methods under certain circumstances. Untrusted code could potentially exploit this. This could lead to sensitive data being exposed to an attacker, or the attacker being able to inject bad data.
http://www-01.ibm.com/support/docview.wss?uid=swg21974193 http://www.ibm.com/developerworks/java/jdk/alerts/#IBMSecurityUpdateJanuary2016
This flaw could allow an untrusted Java application or applet to bypass certain Java sandbox restrictions.
Issue was fixed in IBM JDK 6 SR16-FP20, 7 SR9-FP30, 7R1 SR3-FP30, and 8 SR2-FP10.
Integer overflow in Git before 2.7.4 allows remote attackers to execute arbitrary code via a (1) long filename or (2) many nested trees, which triggers a heap-based buffer overflow.
revision.c in git before 2.7.4 uses an incorrect integer data type, which allows remote attackers to execute arbitrary code via a (1) long filename or (2) many nested trees, leading to a heap-based buffer overflow.