USN-5036-1

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Source

https://ubuntu.com/security/notices/USN-5036-1

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5036-1.json

JSON Data

https://api.test.osv.dev/v1/vulns/USN-5036-1

Related

Published

2022-10-04T11:04:57.645398Z

Modified

2022-10-04T11:04:57.645398Z

Summary

tor vulnerabilities

Details

It was discovered that Tor incorrectly handled certain memory operations. A remote attacker could use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 ESM. (CVE-2019-8955)

It was discovered that Tor did not properly handle the input length to dump_desc() function. A remote attacker could use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2021-28089)

It was discovered that Tor did not properly sanitize the relay nickname in dirvoteaddsignaturestopending_consensus() function. An attacker could possibly use this issue to cause an assertion failure and then cause a denial of service. (CVE-2021-28090)

It was discovered that Tor did not properly validate the layer hint on half-open streams. A remote attacker could possibly use this issue to bypass the access control, leading to remote code execution. This issue only affected Ubuntu 20.04 ESM. (CVE-2021-34548)

It was discovered that Tor was using an insecure hash function. A remote attacker could use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2021-34549)

It was discovered that Tor did not properly manage memory under certain circumstances. If a user were tricked into opening a specially crafted request, a remote attacker could possibly use this issue to cause a crash, resulting in a denial of service, or possibly reading sensitive data. This issue only affected Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2021-34550)

It was discovered that Tor mishandles the relationship between batch-signature verification and single-signature verification. An attacker could possibly use this issue to cause an assertion failure and then cause a denial of service. This issue only affected Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2021-38385)

References

Affected packages

Ubuntu:Pro:14.04:LTS / tor

Package

Name: tor
Purl: pkg:deb/ubuntu/tor?arch=src?distro=trusty/esm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.2.4.27-1ubuntu0.1+esm2

Affected versions

0.*

0.2.3.25-1

0.2.4.19-1

0.2.4.20-1

0.2.4.27-1build0.14.04.1

0.2.4.27-1ubuntu0.1

0.2.4.27-1ubuntu0.1+esm1

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "0.2.4.27-1ubuntu0.1+esm2",
            "binary_name": "tor"
        },
        {
            "binary_version": "0.2.4.27-1ubuntu0.1+esm2",
            "binary_name": "tor-dbg"
        },
        {
            "binary_version": "0.2.4.27-1ubuntu0.1+esm2",
            "binary_name": "tor-dbgsym"
        },
        {
            "binary_version": "0.2.4.27-1ubuntu0.1+esm2",
            "binary_name": "tor-geoipdb"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / tor

Package

Name: tor
Purl: pkg:deb/ubuntu/tor?arch=src?distro=esm-apps/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.2.9.14-1ubuntu1~16.04.3+esm1

Affected versions

0.*

0.2.6.10-1ubuntu2

0.2.7.6-1ubuntu1

0.2.9.11-1ubuntu1~16.04.1

0.2.9.14-1ubuntu1~16.04.1

0.2.9.14-1ubuntu1~16.04.2

0.2.9.14-1ubuntu1~16.04.3

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "0.2.9.14-1ubuntu1~16.04.3+esm1",
            "binary_name": "tor"
        },
        {
            "binary_version": "0.2.9.14-1ubuntu1~16.04.3+esm1",
            "binary_name": "tor-dbg"
        },
        {
            "binary_version": "0.2.9.14-1ubuntu1~16.04.3+esm1",
            "binary_name": "tor-dbgsym"
        },
        {
            "binary_version": "0.2.9.14-1ubuntu1~16.04.3+esm1",
            "binary_name": "tor-geoipdb"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / tor

Package

Name: tor
Purl: pkg:deb/ubuntu/tor?arch=src?distro=esm-apps/bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.3.2.10-1ubuntu0.2~esm2

Affected versions

0.*

0.3.0.10-1

0.3.1.8-2

0.3.1.9-1

0.3.2.9-1

0.3.2.9-1build1

0.3.2.10-1

0.3.2.10-1ubuntu0.1

0.3.2.10-1ubuntu0.2~esm1

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "0.3.2.10-1ubuntu0.2~esm2",
            "binary_name": "tor"
        },
        {
            "binary_version": "0.3.2.10-1ubuntu0.2~esm2",
            "binary_name": "tor-dbgsym"
        },
        {
            "binary_version": "0.3.2.10-1ubuntu0.2~esm2",
            "binary_name": "tor-geoipdb"
        }
    ]
}

Ubuntu:Pro:20.04:LTS / tor

Package

Name: tor
Purl: pkg:deb/ubuntu/tor?arch=src?distro=esm-apps/focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.4.2.7-1ubuntu0.1~esm1

Affected versions

0.*

0.4.1.5-1

0.4.1.5-1build1

0.4.1.6-1

0.4.2.5-1

0.4.2.6-1

0.4.2.7-1

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "0.4.2.7-1ubuntu0.1~esm1",
            "binary_name": "tor"
        },
        {
            "binary_version": "0.4.2.7-1ubuntu0.1~esm1",
            "binary_name": "tor-dbgsym"
        },
        {
            "binary_version": "0.4.2.7-1ubuntu0.1~esm1",
            "binary_name": "tor-geoipdb"
        }
    ]
}