USN-5248-1

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, trick a user into accepting unwanted permissions, conduct header splitting attacks, conduct spoofing attacks, bypass security restrictions, confuse the user, or execute arbitrary code. (CVE-2021-4129, CVE-2021-4140, CVE-2021-29981, CVE-2021-29982, CVE-2021-29987, CVE-2021-29991, CVE-2021-38495, CVE-2021-38496, CVE-2021-38497, CVE-2021-38498, CVE-2021-38500, CVE-2021-38501, CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507, CVE-2021-38508, CVE-2021-38509, CVE-2021-43534, CVE-2021-43535, CVE-2021-43536, CVE-2021-43537, CVE-2021-43538, CVE-2021-43539, CVE-2021-43541, CVE-2021-43542, CVE-2021-43543, CVE-2021-43545, CVE-2021-43656, CVE-2022-22737, CVE-2022-22738, CVE-2022-22739, CVE-2022-22740, CVE-2022-22741, CVE-2022-22742, CVE-2022-22743, CVE-2022-22745, CVE-2022-22747, CVE-2022-22748, CVE-2022-22751)

It was discovered that Thunderbird ignored the configuration to require STARTTLS for an SMTP connection. A person-in-the-middle could potentially exploit this to perform a downgrade attack in order to intercept messages or take control of a session. (CVE-2021-38502)

It was discovered that JavaScript was unexpectedly enabled in the composition area. An attacker could potentially exploit this in combination with another vulnerability, with unspecified impacts. (CVE-2021-43528)

A buffer overflow was discovered in the Matrix chat library bundled with Thunderbird. An attacker could potentially exploit this to cause a denial of service, or execute arbitrary code. (CVE-2021-44538)

It was discovered that Thunderbird's OpenPGP integration only considered the inner signed message when checking signature validity in a message that contains an additional outer MIME layer. An attacker could potentially exploit this to trick the user into thinking that a message has a valid signature. (CVE-2021-4126)

References

Affected packages

Ubuntu:18.04:LTS / thunderbird

Package

Name: thunderbird
Purl: pkg:deb/ubuntu/thunderbird@1:91.5.0+build1-0ubuntu0.18.04.1?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:91.5.0+build1-0ubuntu0.18.04.1

Affected versions

1:52.*

1:52.4.0+build1-0ubuntu2

1:52.6.0+build1-0ubuntu1

1:52.7.0+build1-0ubuntu1

1:52.8.0+build1-0ubuntu0.18.04.1

1:52.9.1+build3-0ubuntu0.18.04.1

1:60.*

1:60.2.1+build1-0ubuntu0.18.04.2

1:60.4.0+build2-0ubuntu0.18.04.1

1:60.5.1+build2-0ubuntu0.18.04.1

1:60.6.1+build2-0ubuntu0.18.04.1

1:60.7.0+build1-0ubuntu0.18.04.1

1:60.7.1+build1-0ubuntu0.18.04.1

1:60.7.2+build2-0ubuntu0.18.04.1

1:60.8.0+build1-0ubuntu0.18.04.1

1:60.9.0+build1-0ubuntu0.18.04.1

1:68.*

1:68.2.1+build1-0ubuntu0.18.04.1

1:68.2.2+build1-0ubuntu0.18.04.1

1:68.4.1+build1-0ubuntu0.18.04.1

1:68.7.0+build1-0ubuntu0.18.04.1

1:68.8.0+build2-0ubuntu0.18.04.2

1:68.10.0+build1-0ubuntu0.18.04.1

1:78.*

1:78.8.1+build1-0ubuntu0.18.04.1

1:78.11.0+build1-0ubuntu0.18.04.2

1:78.13.0+build1-0ubuntu0.18.04.1

1:78.14.0+build1-0ubuntu0.18.04.1

1:78.14.0+build1-0ubuntu0.18.04.2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "thunderbird",
            "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "thunderbird-dev",
            "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1"
        }
    ]
}

Ubuntu:20.04:LTS / thunderbird

Package

Name: thunderbird
Purl: pkg:deb/ubuntu/thunderbird@1:91.5.0+build1-0ubuntu0.20.04.1?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:91.5.0+build1-0ubuntu0.20.04.1

Affected versions

1:68.*

1:68.1.2+build1-0ubuntu1

1:68.1.2+build1-0ubuntu2

1:68.2.1+build1-0ubuntu1

1:68.2.2+build1-0ubuntu1

1:68.3.0+build2-0ubuntu1

1:68.3.1+build1-0ubuntu2

1:68.4.1+build1-0ubuntu1

1:68.4.2+build2-0ubuntu1

1:68.5.0+build1-0ubuntu1

1:68.6.0+build2-0ubuntu1

1:68.7.0+build1-0ubuntu1

1:68.7.0+build1-0ubuntu2

1:68.8.0+build2-0ubuntu0.20.04.2

1:68.10.0+build1-0ubuntu0.20.04.1

1:78.*

1:78.7.1+build1-0ubuntu0.20.04.1

1:78.8.1+build1-0ubuntu0.20.04.1

1:78.11.0+build1-0ubuntu0.20.04.2

1:78.13.0+build1-0ubuntu0.20.04.2

1:78.14.0+build1-0ubuntu0.20.04.1

1:78.14.0+build1-0ubuntu0.20.04.2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "thunderbird",
            "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "thunderbird-dev",
            "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1"
        }
    ]
}