UBUNTU-CVE-2021-42374

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Source
https://ubuntu.com/security/CVE-2021-42374
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42374.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-42374
Upstream
Downstream
Related
Published
2021-11-15T21:15:00Z
Modified
2025-09-08T16:47:23Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H CVSS Calculator
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that

References

Affected packages

Ubuntu:18.04:LTS / busybox

Package

Name
busybox
Purl
pkg:deb/ubuntu/busybox@1:1.27.2-2ubuntu3.4?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.27.2-2ubuntu3.4

Affected versions

1:1.*

1:1.22.0-19ubuntu2
1:1.27.2-1ubuntu3
1:1.27.2-1ubuntu4
1:1.27.2-2ubuntu2
1:1.27.2-2ubuntu3
1:1.27.2-2ubuntu3.1
1:1.27.2-2ubuntu3.2
1:1.27.2-2ubuntu3.3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1:1.27.2-2ubuntu3.4",
            "binary_name": "busybox"
        },
        {
            "binary_version": "1:1.27.2-2ubuntu3.4",
            "binary_name": "busybox-initramfs"
        },
        {
            "binary_version": "1:1.27.2-2ubuntu3.4",
            "binary_name": "busybox-static"
        },
        {
            "binary_version": "1:1.27.2-2ubuntu3.4",
            "binary_name": "busybox-syslogd"
        },
        {
            "binary_version": "1:1.27.2-2ubuntu3.4",
            "binary_name": "udhcpc"
        },
        {
            "binary_version": "1:1.27.2-2ubuntu3.4",
            "binary_name": "udhcpd"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42374.json"

Ubuntu:20.04:LTS / busybox

Package

Name
busybox
Purl
pkg:deb/ubuntu/busybox@1:1.30.1-4ubuntu6.4?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.30.1-4ubuntu6.4

Affected versions

1:1.*

1:1.30.1-4ubuntu4
1:1.30.1-4ubuntu5
1:1.30.1-4ubuntu6
1:1.30.1-4ubuntu6.1
1:1.30.1-4ubuntu6.2
1:1.30.1-4ubuntu6.3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1:1.30.1-4ubuntu6.4",
            "binary_name": "busybox"
        },
        {
            "binary_version": "1:1.30.1-4ubuntu6.4",
            "binary_name": "busybox-initramfs"
        },
        {
            "binary_version": "1:1.30.1-4ubuntu6.4",
            "binary_name": "busybox-static"
        },
        {
            "binary_version": "1:1.30.1-4ubuntu6.4",
            "binary_name": "busybox-syslogd"
        },
        {
            "binary_version": "1:1.30.1-4ubuntu6.4",
            "binary_name": "udhcpc"
        },
        {
            "binary_version": "1:1.30.1-4ubuntu6.4",
            "binary_name": "udhcpd"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42374.json"

Ubuntu:22.04:LTS / busybox

Package

Name
busybox
Purl
pkg:deb/ubuntu/busybox@1:1.30.1-7ubuntu2?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.30.1-7ubuntu2

Affected versions

1:1.*

1:1.30.1-6ubuntu3
1:1.30.1-7ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1:1.30.1-7ubuntu2",
            "binary_name": "busybox"
        },
        {
            "binary_version": "1:1.30.1-7ubuntu2",
            "binary_name": "busybox-initramfs"
        },
        {
            "binary_version": "1:1.30.1-7ubuntu2",
            "binary_name": "busybox-static"
        },
        {
            "binary_version": "1:1.30.1-7ubuntu2",
            "binary_name": "busybox-syslogd"
        },
        {
            "binary_version": "1:1.30.1-7ubuntu2",
            "binary_name": "udhcpc"
        },
        {
            "binary_version": "1:1.30.1-7ubuntu2",
            "binary_name": "udhcpd"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42374.json"