[월:] 2019년 06월

USN-4010-1: Exim vulnerability exim4 vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 18.10 Ubuntu 18.04 LTS Summary Exim could be made to run commands if it received specially crafted network traffic. Software Description exim4 – Exim is a mail transport agent Details It was discovered that Exim incorrectly handled certain decoding operations. A remote attacker could possibly use this issue to execute arbitrary commands. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10 exim4-daemon-heavy – 4.91-6ubuntu1.1 exim4-daemon-light – 4.91-6ubuntu1.1 Ubuntu 18.04 LTS exim4-daemon-heavy – 4.90.1-1ubuntu1.2 exim4-daemon-light – 4.90.1-1ubuntu1.2 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, a standard system update will make all the necessary changes. References CVE-2019-10149 Source: USN-4010-1: Exim vulnerability

USN-4009-1: PHP vulnerabilities php7.0, php7.2 vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 19.04 Ubuntu 18.10 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Summary Several security issues were fixed in PHP. Software Description php7.2 – HTML-embedded scripting language interpreter php7.0 – HTML-embedded scripting language interpreter Details It was discovered that PHP incorrectly handled certain exif tags in images. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2019-11036) It was discovered that PHP incorrectly decoding certain MIME headers. A remote attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. (CVE-2019-11039) It was discovered that PHP incorrectly handled certain exif tags in images. A remote attacker could use this issue to cause PHP to crash, [ more… ]

USN-4007-2: Linux kernel (HWE) vulnerability linux-aws-hwe, linux-hwe, linux-oracle vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.04 LTS Summary A system hardening measure could be bypassed. Software Description linux-aws-hwe – Linux kernel for Amazon Web Services (AWS-HWE) systems linux-hwe – Linux hardware enablement (HWE) kernel linux-oracle – Linux kernel for Oracle Cloud systems Details USN-4007-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS. Federico Manuel Bento discovered that the Linux kernel did not properly apply Address Space Layout Randomization (ASLR) in some situations for setuid a.out binaries. A local attacker could use this to improve the chances of exploiting an existing vulnerability in a setuid a.out binary. As a hardening measure, this [ more… ]

USN-4006-2: Linux kernel (HWE) vulnerability linux-hwe vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 18.04 LTS Summary A system hardening measure could be bypassed. Software Description linux-hwe – Linux hardware enablement (HWE) kernel Details USN-4006-1 fixed a vulnerability in the Linux kernel for Ubuntu 18.10. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.10 for Ubuntu 18.04 LTS. Federico Manuel Bento discovered that the Linux kernel did not properly apply Address Space Layout Randomization (ASLR) in some situations for setuid a.out binaries. A local attacker could use this to improve the chances of exploiting an existing vulnerability in a setuid a.out binary. As a hardening measure, this update disables a.out support. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu [ more… ]

USN-4008-1: Linux kernel vulnerabilities linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.04 LTS Summary Several security issues were fixed in the Linux kernel. Software Description linux – Linux kernel linux-aws – Linux kernel for Amazon Web Services (AWS) systems linux-kvm – Linux kernel for cloud environments linux-raspi2 – Linux kernel for Raspberry Pi 2 linux-snapdragon – Linux kernel for Snapdragon processors Details Robert Święcki discovered that the Linux kernel did not properly apply Address Space Layout Randomization (ASLR) in some situations for setuid elf binaries. A local attacker could use this to improve the chances of exploiting an existing vulnerability in a setuid elf binary. (CVE-2019-11190) It was discovered that a null pointer dereference vulnerability existed in the LSI Logic MegaRAID driver in the Linux kernel. A local attacker [ more… ]