It was discovered that the RMI (Java Remote Method Invocation) server implementation in the JMX (Java Management Extensions) component of OpenJDK did not restrict which classes can be deserialized when deserializing authentication credentials. A remote unauthenticated attacker able to connect to a JMX port could possibly use this flaw trigger deserialization flaws.

HTML tags received from the Pocket server will be processed without sanitization and any JavaScript code executed will be run in the about:pocket-saved (unprivileged) page, giving it access to Pocket's messaging API through HTML injection.

apache. Multiple issues were addressed by updating to version 2.4.27.

The tcpmssmanglepacket function in net/netfilter/xtTCPMSS.c in the Linux kernel before 4.11, and 4.9.x before 4.9.36, allows remote attackers to cause a denial of service (use-after-free and memory corruption) or possibly have unspecified other impact by leveraging the presence of xtTCPMSS in an iptables action.

An unspecified flaw was found in the Libraries component in OpenJDK. ObjectInputStream's readSerialData() could, in certain cases, incorrectly perform deserialization of data from serialized input. An untrusted Java application or applet could use this flaw to bypass Java sandbox restrictions.

It was discovered that OpenSSH client did not correctly handle situations when untrusted X11 forwarding was requested and generation of the untrusted authentication cookie failed. The ssh client continued by generating fake authentication cookie and allowed remote X clients to connect the local X server. The decision if client connection was accepted was delegated to the X server which, depending on its configuration, could allow clients to open trusted X connection. This would lead to remote X clients having more privileged access to the local X server than intended.

This problem can occur when X server does not include or enable X Security extension (for X.org X server, this extension is not compiled in by default since 2007) and when it has authentication methods besides MIT cookies enabled (e.g. localuser authentication allowing all X connections from a local user who owns the X session).

Both of these conditions are satisfied on Red Hat Enterprise Linux 7 and current Fedora versions. The X server does not have X Security extension compiled in and 'xhost +si:localuser:id -un' is run from the xinit scripts. Therefore remote X clients are granted trusted access to the local X server when 'ssh -X' is used, as if 'ssh -Y' was actually used.

The X server on Red Hat Enterprise Linux 6 includes X Security extension (as of RHSA-2013:1620 - http://rhn.redhat.com/errata/RHSA-2013-1620.html - which was released as part of Red Hat Enterprise Linux 6.5) and hence does not fall back to the use of fake authentication cookie.

This issue was corrected upstream in version 7.1p2:

http://www.openssh.com/txt/release-7.1p2

Upstream commit:

https://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416c

which needs to be applied after:

https://anongit.mindrot.org/openssh.git/commit/?id=f98a09cacff7baad8748c9aa217afd155a4d493f

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.

Moxilla Firefox allows remote attackers to bypass the Same Origin Policy to read arbitrary files or gain privileges.

The VNC websocket frame decoder in QEMU allows remote attackers to cause a denial of service (memory and CPU consumption) via a large (1) websocket payload or (2) HTTP headers section.

apache. Multiple issues existed in Apache. These were addressed by updating Apache to version 2.4.25.

Artifex Ghostscript allows -dSAFER bypass and remote command execution via .rsdparams type confusion with a "/OutputFile.

A stack-based buffer overflow vulnerability was found in jasper in jpctsfbgetbands2 function in jpctsfb.c triggered by parsing of a malicious file.

Upstream patch:

https://github.com/mdadams/jasper/commit/1abc2e5a401a4bf1d5ca4df91358ce5df111f495

References:

http://seclists.org/oss-sec/2016/q4/473

A vulnerability was found in a way libxml2 parses certain files. With the libxml2 in recovery mode, a maliciously crafted filed could cause libxml2 to crash.

References:

http://seclists.org/oss-sec/2016/q1/682

CVE assignment:

http://seclists.org/oss-sec/2016/q1/683

Buffer overflow vulnerabilities in functions pnggetPLTE/pngsetPLTE, allowing remote attackers to cause DoS to application or have unspecified other impact. These functions failed to check for an out-of-range palette when reading or writing PNG files with a bitdepth less than 8. Some applications might read the bit depth from the IHDR chunk and allocate memory for a 2^N entry palette, while libpng can return a palette with up to 256 entries even when the bit depth is less than 8.

Affected versions of libpng are before 1.0.64, 1.1.x and 1.2.x before 1.2.54, 1.3.x and 1.4.x before 1.4.17, 1.5.x before 1.5.24, and 1.6.x before 1.6.19.

Upstream patches:

https://github.com/glennrp/libpng/commit/81f44665cce4cb1373f049a76f3904e981b7a766 https://github.com/glennrp/libpng/commit/a901eb3ce6087e0afeef988247f1a1aa208cb54d https://github.com/glennrp/libpng/commit/1bef8e97995c33123665582e57d3ed40b57d5978 https://github.com/glennrp/libpng/commit/83f4c735c88e7f451541c1528d8043c31ba3b466 https://github.com/glennrp/libpng/commit/9f2ad4928e47036cf1ac9b8fe45a491f15be2324

CVE assignment:

http://seclists.org/oss-sec/2015/q4/264

Apache HTTP Server, in all releases prior to 2.2.32 and 2.4.25, was liberal in the whitespace accepted from requests and sent in response lines and headers. Accepting these different behaviors represented a security concern when httpd participates in any chain of proxies or interacts with back-end application servers, either through modproxy or using conventional CGI mechanisms, and may result in request smuggling, response splitting and cache pollution.

apache. Multiple issues were addressed by updating to version 2.4.27.

It was discovered that libtasn1 library function asn1getbitder() could incorrectly report negative bit length of the value read from ASN.1 input. This could possibly lead to an out of bounds access in an application using libtasn1, for example in case if application tried to terminate read value with NUL byte.

The following upstream commit corrects the issue and causes the function to report error rather than return negative length value: http://git.savannah.gnu.org/cgit/libtasn1.git/commit/?id=1c3ccb3e040bf13e342ee60bc23b21b97b11923f

Withdrawn Advisory This advisory has been withdrawn because the vulnerability only affects the Qpid Proton C library and not org.apache.qpid:proton-j. This link has been maintained to preserve external references.

Original Description

While investigating bug PROTON-2014, we discovered that under some circumstances Apache Qpid Proton versions 0.9 to 0.27.0 (C library and its language bindings) can connect to a peer anonymously using TLS even when configured to verify the peer certificate while used with OpenSSL versions before 1.1.0. This means that an undetected man in the middle attack could be constructed if an attacker can arrange to intercept TLS traffic.

APR. Multiple issues in Perl were addressed with improved memory handling.

GStreamer before 1.4.5, as used in Mozilla Firefox before 38.0, Firefox ESR 31.x before 31.7, and Thunderbird before 31.7 on Linux, allows remote attackers to cause a denial of service (buffer over-read and application crash) or possibly execute arbitrary code via crafted H.264 video data in an m4v file.

Unspecified vulnerability in Oracle MySQL Server 5.5.36 and earlier and 5.6.16 and earlier allows remote authenticated users to affect confidentiality, integrity, and availability via vectors related to RBR.

Unspecified vulnerability in Oracle MySQL 5.5.51 and earlier allows remote authenticated users to affect availability via vectors related to DML.

Unspecified vulnerability in Oracle MySQL 5.5.51 and earlier, 5.6.32 and earlier, and 5.7.14 and earlier allows remote authenticated users to affect availability via vectors related to Server: Optimizer.

Unspecified vulnerability in Oracle MySQL 5.5.51 and earlier, 5.6.32 and earlier, and 5.7.14 and earlier allows remote authenticated users to affect availability via vectors related to GIS.

Oracle MySQL before 5.7.3, Oracle MySQL Connector/C (aka libmysqlclient) before 6.1.3, and MariaDB before 5.5.44 use the --ssl option to mean that SSL is optional, which allows man-in-the-middle attackers to spoof servers via a cleartext-downgrade attack, aka a "BACKRONYM" attack.

An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization).

It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire).

As a result, an unprivileged attacker could use this flaw to read privileged memory by conducting targeted cache side-channel attacks.

Unspecified vulnerability in Oracle MySQL 5.5.46 and earlier allows local users to affect availability via vectors related to Optimizer.

The EPHEMERAL coder in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allows remote attackers to delete arbitrary files via a crafted image.

The (1) HTTP and (2) FTP coders in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allow remote attackers to conduct server-side request forgery (SSRF) attacks via a crafted image.