UBUNTU-CVE-2020-1752

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Source
https://ubuntu.com/security/CVE-2020-1752
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-1752.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-1752
Upstream
Downstream
Related
Published
2020-04-30T17:15:00Z
Modified
2025-09-08T16:45:55Z
Severity
  • 7.0 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • 7.0 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32.

References

Affected packages

Ubuntu:Pro:14.04:LTS / eglibc

Package

Name
eglibc
Purl
pkg:deb/ubuntu/eglibc@2.19-0ubuntu6.15+esm4?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

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
2.19-0ubuntu6.14
2.19-0ubuntu6.15
2.19-0ubuntu6.15+esm1
2.19-0ubuntu6.15+esm2
2.19-0ubuntu6.15+esm3
2.19-0ubuntu6.15+esm4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "eglibc-source"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "libc-bin"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "libc-dev-bin"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "libc6"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "libc6-amd64"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "libc6-armel"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "libc6-dev"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "libc6-dev-amd64"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "libc6-dev-armel"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "libc6-dev-i386"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "libc6-dev-x32"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "libc6-i386"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "libc6-pic"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "libc6-prof"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "libc6-x32"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "multiarch-support"
        },
        {
            "binary_version": "2.19-0ubuntu6.15+esm4",
            "binary_name": "nscd"
        }
    ]
}

Ubuntu:16.04:LTS / glibc

Package

Name
glibc
Purl
pkg:deb/ubuntu/glibc@2.23-0ubuntu11.2?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.23-0ubuntu11.2

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
2.23-0ubuntu10
2.23-0ubuntu11

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "glibc-source"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc-bin"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc-dev-bin"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc6"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc6-amd64"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc6-armel"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc6-dev"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc6-dev-amd64"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc6-dev-armel"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc6-dev-i386"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc6-dev-ppc64"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc6-dev-s390"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc6-dev-x32"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc6-i386"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc6-pic"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc6-ppc64"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc6-s390"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "libc6-x32"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "locales"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "locales-all"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "multiarch-support"
        },
        {
            "binary_version": "2.23-0ubuntu11.2",
            "binary_name": "nscd"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:18.04:LTS / glibc

Package

Name
glibc
Purl
pkg:deb/ubuntu/glibc@2.27-3ubuntu1.2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.27-3ubuntu1.2

Affected versions

2.*

2.26-0ubuntu2
2.26-0ubuntu2.1
2.27-0ubuntu2
2.27-0ubuntu3
2.27-3ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "glibc-source"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "libc-bin"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "libc-dev-bin"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "libc6"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "libc6-amd64"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "libc6-armel"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "libc6-dev"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "libc6-dev-amd64"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "libc6-dev-armel"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "libc6-dev-i386"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "libc6-dev-s390"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "libc6-dev-x32"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "libc6-i386"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "libc6-pic"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "libc6-s390"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "libc6-x32"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "locales"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "locales-all"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "multiarch-support"
        },
        {
            "binary_version": "2.27-3ubuntu1.2",
            "binary_name": "nscd"
        }
    ],
    "availability": "No subscription required"
}