USN-6515-1

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    USN-6515-1

    Published: 27 Nov 2023Last Modified: 22 Apr 2026

    Summary: thunderbird vulnerabilities

    Details: 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. (CVE-2023-6206, CVE-2023-6212) It was discovered that Thudnerbird did not properly manage memory when images were created on the canvas element. An attacker could potentially exploit this issue to obtain sensitive information. (CVE-2023-6204) It discovered that Thunderbird incorrectly handled certain memory when using a MessagePort. An attacker could potentially exploit this issue to cause a denial of service. (CVE-2023-6205) It discovered that Thunderbird incorrectly did not properly manage ownership in ReadableByteStreams. An attacker could potentially exploit this issue to cause a denial of service. (CVE-2023-6207) It discovered that Thudnerbird incorrectly did not properly manage copy operations when using Selection API in X11. An attacker could potentially exploit this issue to obtain sensitive information. (CVE-2023-6208) Rachmat Abdul Rokhim discovered that Thunderbird incorrectly handled parsing of relative URLS starting with "///". An attacker could potentially exploit this issue to cause a denial of service. (CVE-2023-6209)

    Affected packages

    Package

    Name: thunderbird

    Purl: pkg:deb/ubuntu/thunderbird@1:115.5.0+build1-0ubuntu0.20.04.1?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:115.5.0+build1-0ubuntu0.20.04.1

    Affected versions

    1:68.1.2+build1-0ubuntu1
    1:68.1.2+build1-0ubuntu2

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    USN-6515-1 | CVE-DB