UBUNTU-CVE-2018-18508

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2018-18508
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18508.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2018-18508
Upstream
Downstream
Related
Published
2018-12-31T00:00:00Z
Modified
2025-09-08T16:45:04Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.

References

Affected packages

Ubuntu:14.04:LTS / nss

Package

Name
nss
Purl
pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.14.04.5?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:3.28.4-0ubuntu0.14.04.5

Affected versions

2:3.*

2:3.15.1-1ubuntu1
2:3.15.2-1
2:3.15.3-1
2:3.15.3.1-1
2:3.15.3.1-1.1
2:3.15.3.1-1.1ubuntu1
2:3.15.4-1ubuntu3
2:3.15.4-1ubuntu4
2:3.15.4-1ubuntu5
2:3.15.4-1ubuntu6
2:3.15.4-1ubuntu7
2:3.15.4-1ubuntu7.1
2:3.17-0ubuntu0.14.04.1
2:3.17.1-0ubuntu0.14.04.1
2:3.17.1-0ubuntu0.14.04.2
2:3.17.4-0ubuntu0.14.04.1
2:3.19.2-0ubuntu0.14.04.1
2:3.19.2.1-0ubuntu0.14.04.1
2:3.19.2.1-0ubuntu0.14.04.2
2:3.21-0ubuntu0.14.04.1
2:3.21-0ubuntu0.14.04.2
2:3.23-0ubuntu0.14.04.1
2:3.26.2-0ubuntu0.14.04.3
2:3.28.4-0ubuntu0.14.04.1
2:3.28.4-0ubuntu0.14.04.2
2:3.28.4-0ubuntu0.14.04.3
2:3.28.4-0ubuntu0.14.04.4

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libnss3",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5"
        },
        {
            "binary_name": "libnss3-1d",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5"
        },
        {
            "binary_name": "libnss3-dev",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5"
        },
        {
            "binary_name": "libnss3-nssdb",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5"
        },
        {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5"
        }
    ]
}

Ubuntu:16.04:LTS / nss

Package

Name
nss
Purl
pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.16.04.5?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:3.28.4-0ubuntu0.16.04.5

Affected versions

2:3.*

2:3.19.2-1ubuntu1
2:3.19.2.1-0ubuntu1
2:3.21-1ubuntu2
2:3.21-1ubuntu3
2:3.21-1ubuntu4
2:3.23-0ubuntu0.16.04.1
2:3.26.2-0ubuntu0.16.04.2
2:3.28.4-0ubuntu0.16.04.1
2:3.28.4-0ubuntu0.16.04.2
2:3.28.4-0ubuntu0.16.04.3
2:3.28.4-0ubuntu0.16.04.4

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libnss3",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.5"
        },
        {
            "binary_name": "libnss3-1d",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.5"
        },
        {
            "binary_name": "libnss3-dev",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.5"
        },
        {
            "binary_name": "libnss3-nssdb",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.5"
        },
        {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.5"
        }
    ]
}

Ubuntu:18.04:LTS / nss

Package

Name
nss
Purl
pkg:deb/ubuntu/nss@2:3.35-2ubuntu2.2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:3.35-2ubuntu2.2

Affected versions

2:3.*

2:3.32-1ubuntu3
2:3.34-1ubuntu1
2:3.35-2ubuntu2
2:3.35-2ubuntu2.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libnss3",
            "binary_version": "2:3.35-2ubuntu2.2"
        },
        {
            "binary_name": "libnss3-dev",
            "binary_version": "2:3.35-2ubuntu2.2"
        },
        {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.35-2ubuntu2.2"
        }
    ]
}