A flaw was found in the Apache Log4j logging library 2.x. when the logging configuration uses a non-default Pattern Layout with a Context Lookup. Attackers with control over Thread Context Map (MDC) input data can craft malicious input data that contains a recursive lookup and can cause Denial of Service.

A memory leak flaw was found in Apache Tomcat, where an HTTP upgrade connection does not release for WebSocket connections once the WebSocket connection is closed. If a sufficient number of such requests are made, an OutOfMemoryError occurs, leading to a denial of service. The highest threat from this vulnerability is to system availability.

Vulnerability in the Advanced Networking Option component of Oracle Database Server. Supported versions that are affected are 12.1.0.2, 12.2.0.1 and 19c. Difficult to exploit vulnerability allows unauthenticated attacker with network access via Oracle Net to compromise Advanced Networking Option. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Advanced Networking Option, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Advanced Networking Option. Note: The July 2021 Critical Patch Update introduces a number of Native Network Encryption changes to deal with vulnerability CVE-2021-2351 and prevent the use of weaker ciphers. Customers should review: "Changes in Native Network Encryption with the July 2021 Critical Patch Update" (Doc ID 2791571.1). CVSS 3.1 Base Score 8.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H).

Apache Ant is vulnerable to a denial of service, caused by an out-of-memory error when large amounts of memory are allocated. By persuading a victim to open a specially-crafted ZIP archive, a remote attacker could exploit this vulnerability to cause the application to crash.

Apache Ant is vulnerable to a denial of service, caused by an out-of-memory error when large amounts of memory are allocated. By persuading a victim to open a specially-crafted TAR archive, a remote attacker could exploit this vulnerability to cause the application to crash.

A flaw was found in Apache Groovy. Groovy makes use of a method for creating temporary directories which is not suitable for security-sensitive contexts and allows for sensitive information leakage. The highest threat from this vulnerability is to data confidentiality.

Apache Ant could allow a remote authenticated attacker to bypass security restrictions, caused by an insecure temporary file flaw. By sending a specially-crafted request, an attacker could exploit this vulnerability to inject modified source files into the build process.

Apache Ant 1.1 to 1.9.14 and 1.10.0 to 1.10.7 uses the default temporary directory identified by the Java system property java.io.tmpdir for several tasks and may thus leak sensitive information. The fixcrlf and replaceregexp tasks also copy files from the temporary directory back into the build tree allowing an attacker to inject modified source files into the build process.

Vulnerability in the Oracle Retail Store Inventory Management product of Oracle Retail Applications (component: Security). The supported version that is affected is 16.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Retail Store Inventory Management. Successful attacks of this vulnerability can result in takeover of Oracle Retail Store Inventory Management. CVSS 3.0 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

faces/context/PartialViewContextImpl.java in Eclipse Mojarra, as used in Mojarra for Eclipse EE4J before 2.3.10 and Mojarra JavaServer Faces before 2.2.20, allows Reflected XSS because a client window field is mishandled.

RSA BSAFE Crypto-J versions prior to 6.2.5 are vulnerable to an Information Exposure Through Timing Discrepancy vulnerabilities during DSA key generation. A malicious remote attacker could potentially exploit those vulnerabilities to recover DSA keys.

RSA BSAFE Crypto-J versions prior to 6.2.5 are vulnerable to a Missing Required Cryptographic Step vulnerability. A malicious remote attacker could potentially exploit this vulnerability to coerce two parties into computing the same predictable shared key.

RSA BSAFE Crypto-J versions prior to 6.2.5 are vulnerable to Information Exposure Through Timing Discrepancy vulnerabilities during ECDSA key generation. A malicious remote attacker could potentially exploit those vulnerabilities to recover ECDSA keys.

Last updated 25 August 2025

It was reported that when an application has Groovy on the classpath and that it uses standard Java serialization mechanim to communicate between servers, or to store local data, it is possible for an attacker to bake a special serialized object that will execute code directly when deserialized. All applications which rely on serialization and do not isolate the code which deserializes objects are subject to this vulnerability.

Mitigation:

Apply the following patch on the MethodClosure class (src/main/org/codehaus/groovy/runtime/MethodClosure.java):

public class MethodClosure extends Closure { + private Object readResolve() { + throw new UnsupportedOperationException(); + }

Alternatively, you should make sure to use a custom security policy file (using the standard Java security manager) or make sure that you do not rely on serialization to communicate remotely.

External References:

http://seclists.org/oss-sec/2015/q3/121