#ubuntu

The online giant analyzes, patches, and maintains its own versions of open source software, and now the company plans to give others access to its libraries and components as a subscription.

Ubuntu Security Notice 5421-1 - It was discovered that LibTIFF incorrectly handled certain images. An attacker could possibly use this issue to cause a crash, resulting in a denial of service. This issue only affects Ubuntu 14.04 ESM, Ubuntu 16.04 ESM, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Chintan Shah discovered that LibTIFF incorrectly handled memory when handling certain images. An attacker could possibly use this issue to cause a crash, resulting in a denial of service, or possibly execute arbitrary code.

xpdf 4.04 allocates excessive memory when presented with crafted input. This can be triggered by (for example) sending a crafted PDF document to the pdftoppm binary. It is most easily reproduced with the DCMAKE_CXX_COMPILER=afl-clang-fast++ option.

FISCO-BCOS release-3.0.0-rc2 was discovered to contain an issue where a malicious node, via an invalid proposal with an invalid header, will cause normal nodes to stop producing new blocks and processing new clients' requests.

FISCO-BCOS release-3.0.0-rc2 was discovered to contain an issue where a malicious node, via an invalid proposal with an invalid header, will cause normal nodes to stop producing new blocks and processing new clients' requests.

Webmin through 1.991, when the Authentic theme is used, allows remote code execution when a user has been manually created (i.e., not created in Virtualmin or Cloudmin). This occurs because settings-editor_write.cgi does not properly restrict the file parameter.

Ubuntu Security Notice 5419-1 - It was discovered that Rsyslog improperly handled certain invalid input. An attacker could use this issue to cause Rsyslog to crash.

Ubuntu Security Notice 5420-1 - It was discovered that Vorbis incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service, or possibly execute arbitrary code.

Heap-based Buffer Overflow in GitHub repository radareorg/radare2 prior to 5.7.0. The bug causes the program reads data past the end of the intented buffer. Typically, this can allow attackers to read sensitive information from other memory locations or cause a crash.

Ubuntu Security Notice 5417-1 - 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. It was discovered that the MMC/SD subsystem in the Linux kernel did not properly handle read errors from SD cards in certain situations. An attacker could possibly use this to expose sensitive information.