#ubuntu

Ubuntu Security Notice 6183-1 - Shoham Danino, Anat Bremler-Barr, Yehuda Afek, and Yuval Shavitt discovered that Bind incorrectly handled the cache size limit. A remote attacker could possibly use this issue to consume memory, leading to a denial of service. It was discovered that Bind incorrectly handled the recursive-clients quota. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 22.10, and Ubuntu 23.04.

libtiff 4.5.0 is vulnerable to Buffer Overflow via extractContigSamplesShifted8bits() at /libtiff/tools/tiffcrop.c:3753.

Ubuntu Security Notice 6182-1 - It was discovered that pngcheck incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service.

Ubuntu Security Notice 6181-1 - Hiroshi Tokumaru discovered that Ruby did not properly handle certain user input for applications the generate HTTP responses using cgi gem. An attacker could possibly use this issue to maliciously modify the response a user would receive from a vulnerable application. This issue only affected Ubuntu 22.10. It was discovered that Ruby incorrectly handled certain regular expressions. An attacker could possibly use this issue to cause a denial of service.

Ubuntu Security Notice 6180-1 - It was discovered that VLC could be made to read out of bounds when decoding image files. If a user were tricked into opening a crafted image file, a remote attacker could possibly use this issue to cause VLC to crash, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. It was discovered that VLC could be made to write out of bounds when processing H.264 video files. If a user were tricked into opening a crafted H.264 video file, a remote attacker could possibly use this issue to cause VLC to crash, leading to a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.

Nokia ASIKA version 7.13.52 suffers from a hard-coded private key disclosure vulnerability.

Ubuntu Security Notice 6143-3 - USN-6143-1 fixed vulnerabilities and USN-6143-2 fixed minor regressions in Firefox. The update introduced several minor regressions. This update fixes the problem. 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. Jun Kokatsu discovered that Firefox did not properly validate site-isolated process for a document loaded from a data: URL that was the result of a redirect, leading to an open redirect attack. An attacker could possibly use this issue to perform phishing attacks.

Ubuntu Security Notice 5948-2 - USN-5948-1 fixed vulnerabilities in Werkzeug. This update provides the corresponding updates for Ubuntu 23.04. It was discovered that Werkzeug did not properly handle the parsing of nameless cookies. A remote attacker could possibly use this issue to shadow other cookies.

SPIP versions 4.2.1 and below suffer from an unauthenticated remote code execution vulnerability.

Ubuntu Security Notice 6168-2 - USN-6168-1 fixed a vulnerability in libx11. This update provides the corresponding update for Ubuntu 14.04 ESM, Ubuntu 16.04 ESM, and Ubuntu 18.04 ESM. Gregory James Duck discovered that libx11 incorrectly handled certain Request, Event, or Error IDs. If a user were tricked into connecting to a malicious X Server, a remote attacker could possibly use this issue to cause libx11 to crash, resulting in a denial of service.