UBUNTU-CVE-2018-1000001

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2018-1000001
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1000001.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-1000001
Upstream
Downstream
Related
Published
2018-01-11T00:00:00Z
Modified
2025-07-18T16:44:52Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - high
Summary
[none]
Details

In glibc 2.26 and earlier there is confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and potential code execution.

References

Affected packages

Ubuntu:14.04:LTS / eglibc

Package

Name
eglibc
Purl
pkg:deb/ubuntu/eglibc@2.19-0ubuntu6.14?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.19-0ubuntu6.14

Affected versions

2.*

2.17-93ubuntu4
2.18-0ubuntu1
2.18-0ubuntu2
2.18-0ubuntu4
2.18-0ubuntu5
2.18-0ubuntu6
2.18-0ubuntu7
2.19-0ubuntu2
2.19-0ubuntu3
2.19-0ubuntu4
2.19-0ubuntu5
2.19-0ubuntu6
2.19-0ubuntu6.1
2.19-0ubuntu6.3
2.19-0ubuntu6.4
2.19-0ubuntu6.5
2.19-0ubuntu6.6
2.19-0ubuntu6.7
2.19-0ubuntu6.8
2.19-0ubuntu6.9
2.19-0ubuntu6.10
2.19-0ubuntu6.11
2.19-0ubuntu6.13

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "eglibc-source",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "glibc-doc",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc-bin",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc-bin-dbgsym",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc-dev-bin",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc-dev-bin-dbgsym",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-amd64",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-amd64-dbgsym",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-armel",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-armel-dbgsym",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-dbg",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-dbgsym",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-dev",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-dev-amd64",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-dev-armel",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-dev-i386",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-dev-ppc64",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-dev-x32",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-i386",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-i386-dbgsym",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-pic",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-ppc64",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-ppc64-dbgsym",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-prof",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-udeb",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-udeb-dbgsym",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-x32",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libc6-x32-dbgsym",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libnss-dns-udeb",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libnss-dns-udeb-dbgsym",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libnss-files-udeb",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "libnss-files-udeb-dbgsym",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "multiarch-support",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "nscd",
            "binary_version": "2.19-0ubuntu6.14"
        },
        {
            "binary_name": "nscd-dbgsym",
            "binary_version": "2.19-0ubuntu6.14"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:Pro:14.04:LTS / musl

Package

Name
musl
Purl
pkg:deb/ubuntu/musl@0.9.15-1ubuntu0.1~esm1?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.15-1ubuntu0.1~esm1

Affected versions

0.*

0.9.14-2
0.9.14-2ubuntu1
0.9.15-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "musl",
            "binary_version": "0.9.15-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "musl-dev",
            "binary_version": "0.9.15-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "musl-tools",
            "binary_version": "0.9.15-1ubuntu0.1~esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Ubuntu:16.04:LTS / glibc

Package

Name
glibc
Purl
pkg:deb/ubuntu/glibc@2.23-0ubuntu10?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.23-0ubuntu10

Affected versions

2.*

2.21-0ubuntu4
2.21-0ubuntu5
2.21-0ubuntu6
2.23-0ubuntu1
2.23-0ubuntu2
2.23-0ubuntu3
2.23-0ubuntu4
2.23-0ubuntu5
2.23-0ubuntu6
2.23-0ubuntu7
2.23-0ubuntu9

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "glibc-doc",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "glibc-source",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc-bin",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc-bin-dbgsym",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc-dev-bin",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc-dev-bin-dbgsym",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-amd64",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-amd64-dbgsym",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-armel",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-armel-dbgsym",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-dbg",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-dbgsym",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-dev",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-dev-amd64",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-dev-armel",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-dev-i386",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-dev-ppc64",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-dev-s390",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-dev-x32",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-i386",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-i386-dbgsym",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-pic",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-ppc64",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-ppc64-dbgsym",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-s390",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-s390-dbgsym",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-udeb",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-udeb-dbgsym",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-x32",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "libc6-x32-dbgsym",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "locales",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "locales-all",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "multiarch-support",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "nscd",
            "binary_version": "2.23-0ubuntu10"
        },
        {
            "binary_name": "nscd-dbgsym",
            "binary_version": "2.23-0ubuntu10"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:Pro:16.04:LTS / musl

Package

Name
musl
Purl
pkg:deb/ubuntu/musl@1.1.9-1ubuntu0.1~esm2?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.9-1ubuntu0.1~esm2

Affected versions

1.*

1.1.9-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "musl",
            "binary_version": "1.1.9-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "musl-dev",
            "binary_version": "1.1.9-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "musl-tools",
            "binary_version": "1.1.9-1ubuntu0.1~esm2"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}