A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how OpenSSH mishandles error codes in specific conditions when verifying the host key. For an attack to be considered successful, the attacker needs to manage to exhaust the client's memory resource first, turning the attack complexity high.

A flaw was found in rsync. It could allow a server to enumerate the contents of an arbitrary file from the client's machine. This issue occurs when files are being copied from a client to a server. During this process, the rsync server will send checksums of local data to the client to compare with in order to determine what data needs to be sent to the server. By sending specially constructed checksum values for arbitrary files, an attacker may be able to reconstruct the data of those files byte-by-byte based on the responses from the client.

A flaw was found in the modproxycluster in the Apache server. A malicious user can add a script in the 'alias' parameter in the URL to trigger the stored cross-site scripting vulnerability. by adding a script on the alias parameter on the URL it adds a new virtual host and adds the script to the cluster-manager page. The impact of this vulnerability is considered as Low as the clustermanager URL should NOT be exposed outside and protected by user/password.

A Prototype Pollution vulnerability was found in jquery. Untrusted JSON passed to the extend function could lead to modifying objects up the prototype chain, including the global Object. A crafted JSON object passed to a vulnerable method could lead to denial of service or data injection, with various consequences.

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.

Oracle Java SE 6u105, 7u91 and 8u65 fixes an unspecified vulnerability in the Deployment component (CVE-2015-4902). Upstream has CVSSv2 scored this issue as: 5.0/AV:N/AC:L/Au:N/C:N/I:P/A:N

External Reference:

http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html#AppendixJAVA

It is unexpected and not allowed to call TTY buffer helpers like ttyinsertflipstring concurrently. This may lead to crashes when ECHOing is enabled and concurrect writers call ptywrite in the meantime. In that case the two writers: the ECHOing from a workqueue and ptywrite from the process race and can overflow the corresponding TTY buffer.

An unprivileged local user could use this flaw to crash the system or, potentially, escalate their privileges on the system.

References: http://seclists.org/oss-sec/2014/q2/243

Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6 do not properly initialize data structures for the nsDOMSVGZoomEvent::mPreviousScale and nsDOMSVGZoomEvent::mNewScale functions, which allows remote attackers to obtain sensitive information from process memory via a crafted web site.

By using a specially crafted HTTP request, the authentication of the jmx-console can be bypassed, as the access restrictions only apply for GET and POST.

Current setting is:

<security-constraint> <web-resource-collection> <web-resource-name>HtmlAdaptor</web-resource-name> <description>An example security config that only allows users with the role JBossAdmin to access the HTML JMX console web application </description> <url-pattern>/</url-pattern> <http-method>GET</http-method> <http-method>POST</http-method> </web-resource-collection> <auth-constraint> <role-name>JBossAdmin</role-name> </auth-constraint> </security-constraint>

and should be changed to block ALL http-methods.

Acknowledgements:

Red Hat would like to thank Stefano Di Paola and Giorgio Fedon of Minded Security for responsibly reporting this issue.