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A double-free vulnerability was found in OpenSSL's PEM_read_bio_ex function. The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and decodes the "name" (for example, "CERTIFICATE"), any header data, and the payload data. If the function succeeds, then the "name_out," "header," and "data" arguments are populated with pointers to buffers containing the relevant decoded data. The ca ...

A timing-based side channel exists in the OpenSSL RSA Decryption implementation, which could be sufficient to recover a ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption, an attacker would have to be able to send a very large number of trial messages for decryption. This issue affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP, and RSASVE.

A flaw was found in OpenSSL. An invalid pointer dereference on read can be triggered when an application tries to load malformed PKCS7 data with the d2i_PKCS7(), d2i_PKCS7_bio() or d2i_PKCS7_fp() functions. This may result in an application crash which could lead to a denial of service. The TLS implementation in OpenSSL does not call this function, however, third party applications might call thes ...

In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided environment variables (SUDO_EDITOR, VISUAL, and EDITOR), allowing a local attacker to append arbitrary entries to the list of files to process. This can lead to privilege escalation. Affected versions are 1.8.0 through 1.9.12.p1. The problem exists because a user-specified editor may conta ...

This is a flaw in the Intel processor execution engine sharing on SMT (e.g. Hyper-Threading) architectures. It can result in leakage of secret data in applications such as OpenSSL that has secret dependent control flow at any granularity level. In order to exploit this flaw, the attacker needs to run a malicious process on the same core of the processor as the victim process.

The host is installed with kernel on RHEL 5, 6, or 7 and is prone to a buffer overflow vulnerability. A flaw is present in the application, which fails to properly handle kernel's virtio-net handled fragmented packets. Successful exploitation could allow attackers to send crafted packets to a target system.

Systems with microprocessors utilizing speculative execution and branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a speculative buffer overflow and side-channel analysis.

The host is installed with ntp on Red Hat Enterprise Linux 5, 6 or 7 and is prone to a denial of service vulnerability. A flaw is present in the application, which fails to properly handle a mode 6 or mode 7 packet containing an unusually long data. Successful exploitation could allow attackers to crash ntpd.

The host is installed with ntp on Red Hat Enterprise Linux 5, 6 or 7 and is prone to a denial of service vulnerability. A flaw is present in the application, which fails to properly handle a packet with particular autokey operations. Successful exploitation could allow attackers to crash ntpd.

The host is installed with ntp on Red Hat Enterprise Linux 5, 6 or 7 and is prone to a denial of service vulnerability. A flaw is present in the application, which fails to properly handle a packet with particular autokey operations. Successful exploitation could allow attackers to crash ntpd.


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