[월:] 2017년 05월

USN-3295-1: JasPer vulnerabilities Ubuntu Security Notice USN-3295-1 18th May, 2017 jasper vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary Several security issues were fixed in JasPer. Software description jasper – Library for manipulating JPEG-2000 files Details It was discovered that JasPer incorrectly handled certain malformedJPEG-2000 image files. If a user or automated system using JasPer weretricked into opening a specially crafted image, an attacker could exploitthis to cause a denial of service or possibly execute code with theprivileges of the user invoking the program. Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 16.04 LTS: libjasper1 1.900.1-debian1-2.4ubuntu1.1 Ubuntu 14.04 LTS: libjasper1 1.900.1-14ubuntu3.4 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, a standard system update will make all the [ more… ]

USN-3275-3: OpenJDK 7 regression Ubuntu Security Notice USN-3275-3 18th May, 2017 openjdk-7 regression A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 14.04 LTS Summary USN-3275-2 introduced a regression in OpenJDK 7. Software description openjdk-7 – Open Source Java implementation Details USN-3275-2 fixed vulnerabilities in OpenJDK 7. Unfortunately, theupdate introduced a regression when handling TLS handshakes. Thisupdate fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that OpenJDK improperly re-used cached NTLM connections in some situations. A remote attacker could possibly use this to cause a Java application to perform actions with the credentials of a different user. (CVE-2017-3509) It was discovered that an untrusted library search path flaw existed in the Java Cryptography Extension (JCE) component of OpenJDK. A local attacker could possibly use this to gain the privileges of a [ more… ]

USN-3283-2: rtmpdump vulnerabilities Ubuntu Security Notice USN-3283-2 23rd May, 2017 rtmpdump vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.04 LTS Summary rtmpdump could be made to crash or run programs as your login if it processed a specially crafted stream. Software description rtmpdump – small dumper for media content streamed over the RTMP protocol Details Dave McDaniel discovered that rtmpdump incorrectly handled certainmalformed streams. If a user were tricked into processing a speciallycrafted stream, a remote attacker could cause rtmpdump to crash, resultingin a denial of service, or possibly execute arbitrary code. Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 12.04 LTS: librtmp0 2.4~20110711.gitc28f1bab-1ubuntu0.1 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-3296-1: Samba vulnerability Ubuntu Security Notice USN-3296-1 24th May, 2017 samba vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.04 Ubuntu 16.10 Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary Samba could be made to run programs as an administrator. Software description samba – SMB/CIFS file, print, and login server for Unix Details It was discovered that Samba incorrectly handled shared libraries. A remoteattacker could use this flaw to upload a shared library to a writable shareand execute arbitrary code. Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 17.04: samba 2:4.5.8+dfsg-0ubuntu0.17.04.2 Ubuntu 16.10: samba 2:4.4.5+dfsg-2ubuntu5.6 Ubuntu 16.04 LTS: samba 2:4.3.11+dfsg-0ubuntu0.16.04.7 Ubuntu 14.04 LTS: samba 2:4.3.11+dfsg-0ubuntu0.14.04.8 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 [ more… ]

USN-3297-1: jbig2dec vulnerabilities Ubuntu Security Notice USN-3297-1 24th May, 2017 jbig2dec vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.04 Ubuntu 16.10 Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary Several security issues were fixed in jbig2dec. Software description jbig2dec – JBIG2 decoder library Details Bingchang Liu discovered that jbig2dec incorrectly handled memory whendecoding malformed image files. If a user or automated system were trickedinto processing a specially crafted JBIG2 image file, a remote attackercould cause jbig2dec to crash, resulting in a denial of service, orpossibly execute arbitrary code. This issue only applied to Ubuntu 14.04LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-9601) It was discovered that jbig2dec incorrectly handled memory when decodingmalformed image files. If a user or automated system were tricked intoprocessing a specially crafted JBIG2 image file, a remote attacker couldcause jbig2dec to [ more… ]