UBUNTU-CVE-2017-6420

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Source
https://ubuntu.com/security/CVE-2017-6420
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-6420.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2017-6420
Upstream
Downstream
Related
Published
2017-08-06T00:00:00Z
Modified
2025-09-08T16:44:09Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The wwunpack function in libclamav/wwunpack.c in ClamAV 0.99.2 allows remote attackers to cause a denial of service (use-after-free) via a crafted PE file with WWPack compression.

References

Affected packages

Ubuntu:14.04:LTS / clamav

Package

Name
clamav
Purl
pkg:deb/ubuntu/clamav@0.99.2+addedllvm-0ubuntu0.14.04.2?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.99.2+addedllvm-0ubuntu0.14.04.2

Affected versions

0.*

0.97.8+dfsg-1ubuntu4
0.97.8+dfsg-1ubuntu5
0.98.1+dfsg-1ubuntu4
0.98.1+dfsg-1ubuntu5
0.98.1+dfsg-2ubuntu2
0.98.1+dfsg-4ubuntu1
0.98.1+dfsg-4ubuntu1.1
0.98.5+addedllvm-0ubuntu0.14.04.1
0.98.6+dfsg-0ubuntu0.14.04.1
0.98.7+dfsg-0ubuntu0.14.04.1
0.99.2+addedllvm-0ubuntu0.14.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "clamav",
            "binary_version": "0.99.2+addedllvm-0ubuntu0.14.04.2"
        },
        {
            "binary_name": "clamav-base",
            "binary_version": "0.99.2+addedllvm-0ubuntu0.14.04.2"
        },
        {
            "binary_name": "clamav-daemon",
            "binary_version": "0.99.2+addedllvm-0ubuntu0.14.04.2"
        },
        {
            "binary_name": "clamav-docs",
            "binary_version": "0.99.2+addedllvm-0ubuntu0.14.04.2"
        },
        {
            "binary_name": "clamav-freshclam",
            "binary_version": "0.99.2+addedllvm-0ubuntu0.14.04.2"
        },
        {
            "binary_name": "clamav-milter",
            "binary_version": "0.99.2+addedllvm-0ubuntu0.14.04.2"
        },
        {
            "binary_name": "clamav-testfiles",
            "binary_version": "0.99.2+addedllvm-0ubuntu0.14.04.2"
        },
        {
            "binary_name": "libclamav-dev",
            "binary_version": "0.99.2+addedllvm-0ubuntu0.14.04.2"
        },
        {
            "binary_name": "libclamav7",
            "binary_version": "0.99.2+addedllvm-0ubuntu0.14.04.2"
        }
    ]
}

Ubuntu:16.04:LTS / clamav

Package

Name
clamav
Purl
pkg:deb/ubuntu/clamav@0.99.2+dfsg-0ubuntu0.16.04.2?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.99.2+dfsg-0ubuntu0.16.04.2

Affected versions

0.*

0.98.7+dfsg-0ubuntu4
0.98.7+dfsg-0ubuntu5
0.99+dfsg-1ubuntu1
0.99+dfsg-1ubuntu1.1
0.99+dfsg-1ubuntu1.2
0.99.2+dfsg-0ubuntu0.16.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "clamav",
            "binary_version": "0.99.2+dfsg-0ubuntu0.16.04.2"
        },
        {
            "binary_name": "clamav-base",
            "binary_version": "0.99.2+dfsg-0ubuntu0.16.04.2"
        },
        {
            "binary_name": "clamav-daemon",
            "binary_version": "0.99.2+dfsg-0ubuntu0.16.04.2"
        },
        {
            "binary_name": "clamav-docs",
            "binary_version": "0.99.2+dfsg-0ubuntu0.16.04.2"
        },
        {
            "binary_name": "clamav-freshclam",
            "binary_version": "0.99.2+dfsg-0ubuntu0.16.04.2"
        },
        {
            "binary_name": "clamav-milter",
            "binary_version": "0.99.2+dfsg-0ubuntu0.16.04.2"
        },
        {
            "binary_name": "clamav-testfiles",
            "binary_version": "0.99.2+dfsg-0ubuntu0.16.04.2"
        },
        {
            "binary_name": "clamdscan",
            "binary_version": "0.99.2+dfsg-0ubuntu0.16.04.2"
        },
        {
            "binary_name": "libclamav-dev",
            "binary_version": "0.99.2+dfsg-0ubuntu0.16.04.2"
        },
        {
            "binary_name": "libclamav7",
            "binary_version": "0.99.2+dfsg-0ubuntu0.16.04.2"
        }
    ]
}