#ubuntu

An issue was discovered in TigerGraph Enterprise Free Edition 3.x. Data loading jobs in gsql_server, created by any user with designer permissions, can read sensitive data from arbitrary locations.

Ubuntu Security Notice 6012-1 - It was discovered that Smarty incorrectly parsed blocks' names and included files' names. A remote attacker with template writing permissions could use this issue to execute arbitrary PHP code.

Ubuntu Security Notice 6015-1 - Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, bypass security restrictions, cross-site tracing, or execute arbitrary code. Paul Menzel discovered that Thunderbird did not properly validate OCSP revocation status of recipient certificates when sending S/Mime encrypted email. An attacker could potentially exploits this issue to perform spoofing attack.

Ubuntu Security Notice 6014-1 - Xuewei Feng, Chuanpu Fu, Qi Li, Kun Sun, and Ke Xu discovered that the TCP implementation in the Linux kernel did not properly handle IPID assignment. A remote attacker could use this to cause a denial of service or inject forged data. Ke Sun, Alyssa Milburn, Henrique Kawakami, Emma Benoit, Igor Chervatyuk, Lisa Aichele, and Thais Moreira Hamasaki discovered that the Spectre Variant 2 mitigations for AMD processors on Linux were insufficient in some situations. A local attacker could possibly use this to expose sensitive information.

Ubuntu Security Notice 6008-1 - It was discovered that Exo did not properly sanitized desktop files. A remote attacker could possibly use this issue to to cause a crash or arbitrary code execution.

Ubuntu Security Notice 6013-1 - Xuewei Feng, Chuanpu Fu, Qi Li, Kun Sun, and Ke Xu discovered that the TCP implementation in the Linux kernel did not properly handle IPID assignment. A remote attacker could use this to cause a denial of service or inject forged data. Ke Sun, Alyssa Milburn, Henrique Kawakami, Emma Benoit, Igor Chervatyuk, Lisa Aichele, and Thais Moreira Hamasaki discovered that the Spectre Variant 2 mitigations for AMD processors on Linux were insufficient in some situations. A local attacker could possibly use this to expose sensitive information.

Ubuntu Security Notice 6011-1 - It was discovered that Json-smart incorrectly handled memory when processing input containing unclosed quotes. A remote attacker could possibly use this issue to cause applications using Json-smart to crash, leading to a denial of service. It was discovered that Json-smart incorrectly handled memory when processing input containing unclosed brackets. A remote attacker could possibly use this issue to cause applications using Json-smart to crash, leading to a denial of service.

Ubuntu Security Notice 6010-1 - Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. Irvan Kurniawan discovered that Firefox did not properly manage fullscreen notifications using a combination of window.open, fullscreen requests, window.name assignments, and setInterval calls. An attacker could potentially exploit this issue to perform spoofing attacks.

Ubuntu Security Notice 6009-1 - It was discovered that the System V IPC implementation in the Linux kernel did not properly handle large shared memory counts. A local attacker could use this to cause a denial of service. It was discovered that a use-after-free vulnerability existed in the SGI GRU driver in the Linux kernel. A local attacker could possibly use this to cause a denial of service or possibly execute arbitrary code.

TightVNC before v2.8.75 allows attackers to escalate privileges on the host operating system via replacing legitimate files with crafted files when executing a file transfer. This is due to the fact that TightVNC runs in the backend as a high-privileges account.