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Ubuntu Security Notices (USN)

Source: https://ubuntu.com/security/notices

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  • Critical max 9.8
    USN-7065-1 1 CVE 1 exploited

    firefox vulnerability

    Damien Schaeffer discovered that Firefox did not properly manage memory in the content process when handling Animation timelines, leading to a use after free vulnerability. An attacker could possibly use this issue to achieve remote code execution.

    first Oct 14, 2024
  • Critical max 9.1
    USN-6885-5 2 CVEs 1 exploited

    apache2 vulnerabilities

    USN-6885-1 fixed vulnerabilities in Apache. This update provides the corresponding updates for Ubuntu 14.04 LTS. Original advisory details: Orange Tsai discovered that the Apache HTTP Server mod_rewrite module incorrectly handled certain substitutions. A remo…

    first Jul 21, 2025
  • High max 8.8
    USN-7172-1 1 CVE 1 exploited

    libvpx vulnerability

    It was discovered that libvpx did not properly handle certain malformed media files. If an application using libvpx opened a specially crafted file, a remote attacker could cause a denial of service, or possibly execute arbitrary code. Ubuntu 22.04 LTS, Ubunt…

    first Dec 18, 2024
  • High max 8.8
    USN-6631-1 3 CVEs 1 exploited

    webkit2gtk vulnerabilities

    Several security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting a…

    first Feb 12, 2024
  • High max 8.8
    USN-6545-1 2 CVEs 2 exploited

    webkit2gtk vulnerabilities

    Several security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting a…

    first Dec 11, 2023
  • High max 7.8
    USN-6409-1 1 CVE 1 exploited

    glibc vulnerabilities

    It was discovered that the GNU C Library incorrectly handled the GLIBC_TUNABLES environment variable. An attacker could possibly use this issue to perform a privilege escalation attack. (CVE-2023-4911) It was discovered that the GNU C Library incorrectly hand…

    first Oct 3, 2023
  • Critical max 9.8
    USN-6405-1 11 CVEs 1 exploited

    thunderbird vulnerabilities

    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 secu…

    first Oct 3, 2023
  • High max 8.8
    USN-6369-2 1 CVE 1 exploited

    libwebp vulnerability

    USN-6369-1 fixed a vulnerability in libwebp. This update provides the corresponding update for Ubuntu 18.04 LTS. Original advisory details: It was discovered that libwebp incorrectly handled certain malformed images. If a user or automated system were tricked…

    first Sep 28, 2023
  • Critical max 9.8
    USN-6404-1 8 CVEs 1 exploited

    firefox vulnerabilities

    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 c…

    first Oct 3, 2023
  • High max 8.8
    USN-6369-1 1 CVE 1 exploited

    libwebp vulnerability

    It was discovered that libwebp incorrectly handled certain malformed images. If a user or automated system were tricked into opening a specially crafted image file, a remote attacker could use this issue to cause libwebp to crash, resulting in a denial of ser…

    first Sep 14, 2023
  • High max 8.8
    USN-6368-1 6 CVEs 1 exploited

    thunderbird vulnerabilities

    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 secu…

    first Sep 14, 2023
  • High max 8.8
    USN-6367-1 1 CVE 1 exploited

    firefox vulnerability

    It was discovered that Firefox did not properly manage memory when handling WebP images. If a user were tricked into opening a webpage containing malicious WebP image file, an attacker could potentially exploit these to cause a denial of service or execute ar…

    first Sep 14, 2023
  • High max 8.8
    USN-6264-1 6 CVEs 5 exploited

    webkit2gtk vulnerabilities

    Several security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting a…

    first Jul 31, 2023
  • High max 8.8
    USN-6061-1 6 CVEs 1 exploited

    webkit2gtk vulnerabilities

    Several security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting a…

    first May 8, 2023
  • High max 8.8
    USN-5893-1 1 CVE 1 exploited

    webkit2gtk vulnerabilities

    Several security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting a…

    first Feb 27, 2023
  • High max 8.8
    USN-5797-1 7 CVEs 1 exploited

    webkit2gtk vulnerabilities

    Several security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting a…

    first Jan 9, 2023
  • High max 8.8
    USN-5611-1 1 CVE 1 exploited

    webkit2gtk vulnerability

    Several security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting a…

    first Sep 14, 2022
  • High max 8.8
    USN-5568-1 3 CVEs 1 exploited

    webkit2gtk vulnerabilities

    Several security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting a…

    first Aug 15, 2022
  • Critical max 9.6
    USN-5314-1 2 CVEs 2 exploited

    firefox vulnerabilities

    A use-after-free was discovered when removing an XSLT parameter in some circumstances. If a user were tricked into opening a specially crafted website, an attacker could exploit this to cause a denial of service, or execute arbitrary code. (CVE-2022-26485) A …

    first Mar 6, 2022
  • High max 7.8
    USN-5252-1 1 CVE 1 exploited

    policykit-1 vulnerability

    It was discovered that the PolicyKit pkexec tool incorrectly handled command-line arguments. A local attacker could use this issue to escalate privileges to an administrator.

    first Jan 25, 2022
  • High max 8.8
    USN-5255-1 7 CVEs 1 exploited

    webkit2gtk vulnerabilities

    A large number of security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site s…

    first Jan 27, 2022
  • High max 8.8
    USN-5087-1 1 CVE 1 exploited

    webkit2gtk vulnerabilities

    A large number of security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site s…

    first Sep 22, 2021
  • Critical max 9.0
    USN-5090-1 5 CVEs 1 exploited

    apache2 vulnerabilities

    James Kettle discovered that the Apache HTTP Server HTTP/2 module incorrectly handled certain crafted methods. A remote attacker could possibly use this issue to perform request splitting or cache poisoning attacks. (CVE-2021-33193) It was discovered that the…

    first Sep 27, 2021
  • High max 8.8
    USN-5024-1 13 CVEs 2 exploited

    webkit2gtk vulnerabilities

    A large number of security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site s…

    first Jul 28, 2021
  • High max 7.8
    USN-4980-1 1 CVE 1 exploited

    policykit-1 vulnerability

    Kevin Backhouse discovered that polkit incorrectly handled errors in the polkit_system_bus_name_get_creds_sync function. A local attacker could possibly use this issue to escalate privileges.

    first Jun 3, 2021
  • Critical max 9.8
    USN-4939-1 3 CVEs 1 exploited

    webkit2gtk vulnerabilities

    A large number of security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site s…

    first May 10, 2021
  • Critical max 9.8
    USN-4894-1 7 CVEs 2 exploited

    webkit2gtk vulnerabilities

    A large number of security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site s…

    first Mar 29, 2021
  • Critical max 9.6
    USN-4593-1 1 CVE 1 exploited

    freetype vulnerability

    Sergei Glazunov discovered that FreeType did not correctly handle certain malformed font files. If a user were tricked into using a specially crafted font file, a remote attacker could cause FreeType to crash or possibly execute arbitrary code with user privi…

    first Oct 20, 2020
  • Critical max 9.6
    USN-4593-2 1 CVE 1 exploited

    freetype vulnerability

    USN-4593-1 fixed a vulnerability in FreeType. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: Sergei Glazunov discovered that FreeType did not correctly handle certain malformed font files. If a user were tricked…

    first Oct 22, 2020
  • Medium max 5.5
    USN-4559-1 1 CVE 1 exploited

    samba update

    Tom Tervoort discovered that the Netlogon protocol implemented by Samba incorrectly handled the authentication scheme. A remote attacker could use this issue to forge an authentication token and steal the credentials of the domain admin. While a previous secu…

    first Sep 30, 2020
  • Medium max 5.5
    USN-4510-1 1 CVE 1 exploited

    samba vulnerability

    Tom Tervoort discovered that the Netlogon protocol implemented by Samba incorrectly handled the authentication scheme. A remote attacker could use this issue to forge an authentication token and steal the credentials of the domain admin. This update fixes the…

    first Sep 17, 2020
  • Medium max 5.5
    USN-4510-2 1 CVE 1 exploited

    samba vulnerability

    USN-4510-1 fixed a vulnerability in Samba. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: Tom Tervoort discovered that the Netlogon protocol implemented by Samba incorrectly handled the authentication scheme. A …

    first Sep 17, 2020
  • High max 8.1
    USN-4317-1 2 CVEs 2 exploited

    firefox vulnerabilities

    Two use-after-free bugs were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could exploit these to cause a denial of service or execute arbitrary code.

    first Apr 4, 2020
  • High max 8.8
    USN-4178-1 4 CVEs 1 exploited

    webkit2gtk vulnerabilities

    A large number of security issues were discovered in the WebKitGTK+ Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site …

    first Nov 7, 2019
  • High max 8.8
    USN-4241-1 11 CVEs 1 exploited

    thunderbird vulnerabilities

    Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, conduct cross-site scripting (XSS) attac…

    first Jan 16, 2020
  • High max 8.7
    USN-4166-2 1 CVE 1 exploited

    php5 vulnerability

    USN-4166-1 fixed a vulnerability in PHP. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Original advisory details: It was discovered that PHP incorrectly handled certain paths when being used in FastCGI configurations…

    first Oct 29, 2019
  • High max 8.7
    USN-4166-1 1 CVE 1 exploited

    php7.0, php7.2, php7.3 vulnerability

    It was discovered that PHP incorrectly handled certain paths when being used in FastCGI configurations. A remote attacker could possibly use this issue to execute arbitrary code.

    first Oct 28, 2019
  • Critical max 10.0
    USN-4045-1 2 CVEs 2 exploited

    thunderbird vulnerabilities

    A type confusion bug was discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could exploit this by causing a denial of service, or executing arbirary code. (CVE-2019-11707) It was disc…

    first Jul 1, 2019
  • Critical max 10.0
    USN-4032-1 1 CVE 1 exploited

    firefox vulnerability

    It was discovered that a sandboxed child process could open arbitrary web content in the parent process via the Prompt:Open IPC message. When combined with another vulnerability, an attacker could potentially exploit this to execute arbitrary code.

    first Jun 24, 2019
  • High max 8.8
    USN-4020-1 1 CVE 1 exploited

    firefox vulnerability

    A type confusion bug was discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could exploit this by causing a denial of service, or executing arbitrary code.

    first Jun 19, 2019