USN-4246-1

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Source
https://ubuntu.com/security/notices/USN-4246-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4246-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4246-1
Related
Published
2020-01-22T19:00:08.987446Z
Modified
2020-01-22T19:00:08.987446Z
Summary
zlib vulnerabilities
Details

It was discovered that zlib incorrectly handled pointer arithmetic. An attacker could use this issue to cause zlib to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-9840, CVE-2016-9841)

It was discovered that zlib incorrectly handled vectors involving left shifts of negative integers. An attacker could use this issue to cause zlib to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-9842)

It was discovered that zlib incorrectly handled vectors involving big-endian CRC calculation. An attacker could use this issue to cause zlib to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-9843)

References

Affected packages

Ubuntu:16.04:LTS / zlib

Package

Name
zlib
Purl
pkg:deb/ubuntu/zlib@1:1.2.8.dfsg-2ubuntu4.3?arch=src?distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.2.8.dfsg-2ubuntu4.3

Affected versions

1:1.*

1:1.2.8.dfsg-2ubuntu4
1:1.2.8.dfsg-2ubuntu4.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "zlib1g-dbg": "1:1.2.8.dfsg-2ubuntu4.3",
            "lib64z1": "1:1.2.8.dfsg-2ubuntu4.3",
            "zlib1g-dev": "1:1.2.8.dfsg-2ubuntu4.3",
            "zlib1g-udeb-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3",
            "lib64z1-dev": "1:1.2.8.dfsg-2ubuntu4.3",
            "zlib1g": "1:1.2.8.dfsg-2ubuntu4.3",
            "lib32z1-dev-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3",
            "libx32z1-dev": "1:1.2.8.dfsg-2ubuntu4.3",
            "libx32z1": "1:1.2.8.dfsg-2ubuntu4.3",
            "zlib1g-udeb": "1:1.2.8.dfsg-2ubuntu4.3",
            "lib64z1-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3",
            "zlib1g-dev-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3",
            "libx32z1-dev-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3",
            "lib32z1-dev": "1:1.2.8.dfsg-2ubuntu4.3",
            "lib64z1-dev-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3",
            "lib32z1-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3",
            "libx32z1-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3",
            "zlib1g-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3",
            "lib32z1": "1:1.2.8.dfsg-2ubuntu4.3"
        }
    ]
}