Package Instance

Uncontrolled Resource Consumption
Algorithmic complexity vulnerability in the `ssl.match_hostname` function and unspecified versions of python-backports-ssl_match_hostname as used for older Python versions, allows remote attackers to cause a denial of service (CPU consumption) via multiple wildcard characters in the common name in a certificate.

Exposure of Sensitive Information to an Unauthorized Actor
The (1) proton.reactor.Connector, (2) proton.reactor.Container, and (3) proton.utils.BlockingConnection classes in Apache Qpid Proton before 0.12.1 improperly use an unencrypted connection for an amqps URI scheme when SSL support is unavailable, which might allow man-in-the-middle attackers to obtain sensitive information or modify data via unspecified vectors.

Potential Denial of Service Vulnerability
Carefully crafted requests can cause a `SystemStackError` and potentially cause a denial of service attack.

In Bouncy Castle JCE Provider it is possible to inject extra elements in the sequence making up the signature and still have it validate
In Bouncy Castle JCE Provider version 1.55 and earlier the DSA does not fully validate ASN.1 encoding of signature on verification. It is possible to inject extra elements in the sequence making up the signature and still have it validate, which in some cases may allow the introduction of 'invisible' data into a signed structure.

Withdrawn Advisory: Improper Restriction of XML External Entity Reference in Apache ActiveMQ
## Withdrawn Advisory
This advisory has been withdrawn because further investgation revealed that this is not a security issue. This link is maintained to preserve external references.

## Original Description
XML external entity (XXE) vulnerability in the XPath selector component in Artemis ActiveMQ before commit 48d9951d879e0c8cbb59d4b64ab59d53ef88310d allows remote attackers to have unspecified impact via unknown vectors.

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
pulp 2.16.x and possibly older is vulnerable to an improper path parsing. A malicious user or a malicious iso feed repository can write to locations accessible to the 'apache' user. This may lead to overwrite of published content on other iso repositories.

Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15
In the Bouncy Castle JCE Provider version 1.55 and earlier the DHIES/ECIES CBC mode vulnerable to padding oracle attack. For BC 1.55 and older, in an environment where timings can be easily observed, it is possible with enough observations to identify when the decryption is failing due to padding.

In Bouncy Castle JCE Provider the other party DH public key is not fully validated
In the Bouncy Castle JCE Provider version 1.55 and earlier the other party DH public key is not fully validated. This can cause issues as invalid keys can be used to reveal details about the other party's private key where static Diffie-Hellman is in use. As of release 1.56 the key parameters are checked on agreement calculation.

Mozilla developers added support in the Network Security Services
module for preventing a type of man-in-the-middle attack against TLS
using forced renegotiation.Note that to benefit from the fix, Firefox 3.6 and
Firefox 3.5 users will need to set
their security.ssl.require_safe_negotiation preference to
true.  Firefox 3 does not contain the fix for this issue.