[월:] 2019년 12월

USN-4221-1: libpcap vulnerability libpcap vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 19.04 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Ubuntu 14.04 ESM Summary Applications using libpcap could be made to crash if given specially crafted data. Software Description libpcap – Library for for user-level network packet capture Details It was discovered that libpcap did not properly validate PHB headers in some situations. An attacker could use this to cause a denial of service (memory exhaustion). Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04 libpcap0.8 – 1.8.1-6ubuntu1.19.04.1 Ubuntu 18.04 LTS libpcap0.8 – 1.8.1-6ubuntu1.18.04.1 Ubuntu 16.04 LTS libpcap0.8 – 1.7.4-2ubuntu0.1 Ubuntu 14.04 ESM libpcap0.8 – 1.5.3-2ubuntu0.1 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. [ more… ]

USN-4202-2: Thunderbird regression thunderbird regression A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 19.10 Ubuntu 18.04 LTS Summary USN-4202-1 caused a regression in Thunderbird. Software Description thunderbird – Mozilla Open Source mail and newsgroup client Details USN-4202-1 fixed vulnerabilities in Thunderbird. After upgrading, Thunderbird created a new profile for some users. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that a specially crafted S/MIME message with an inner encryption layer could be displayed as having a valid signature in some circumstances, even if the signer had no access to the encrypted message. An attacker could potentially exploit this to spoof the message author. (CVE-2019-11755) Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an [ more… ]