UBUNTU-CVE-2018-6551

See a problem?
Source
https://ubuntu.com/security/notices/UBUNTU-CVE-2018-6551
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-6551.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-6551
Related
Published
2018-02-02T14:29:00Z
Modified
2018-02-02T14:29:00Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

The malloc implementation in the GNU C Library (aka glibc or libc6), from version 2.24 to 2.26 on powerpc, and only in version 2.26 on i386, did not properly handle malloc calls with arguments close to SIZE_MAX and could return a pointer to a heap region that is smaller than requested, eventually leading to heap corruption.

References

Affected packages

Ubuntu:18.04:LTS / glibc

Package

Name
glibc
Purl
pkg:deb/ubuntu/glibc@2.27-3ubuntu1?arch=src?distro=bionic

Affected ranges

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

Affected versions

2.*

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "libc6-s390-dbgsym": "2.27-3ubuntu1",
            "libc6-dev": "2.27-3ubuntu1",
            "multiarch-support": "2.27-3ubuntu1",
            "libc6-dev-s390": "2.27-3ubuntu1",
            "libc6-dev-i386": "2.27-3ubuntu1",
            "locales-all": "2.27-3ubuntu1",
            "libc6-amd64-dbgsym": "2.27-3ubuntu1",
            "libc6-pic": "2.27-3ubuntu1",
            "glibc-source": "2.27-3ubuntu1",
            "libc6-dev-amd64": "2.27-3ubuntu1",
            "nscd-dbgsym": "2.27-3ubuntu1",
            "nscd": "2.27-3ubuntu1",
            "glibc-doc": "2.27-3ubuntu1",
            "libc6-armel": "2.27-3ubuntu1",
            "libc6-armel-dbgsym": "2.27-3ubuntu1",
            "libc6": "2.27-3ubuntu1",
            "libc6-dbg": "2.27-3ubuntu1",
            "libc-bin": "2.27-3ubuntu1",
            "libc6-i386": "2.27-3ubuntu1",
            "libc6-udeb": "2.27-3ubuntu1",
            "libc6-dev-x32": "2.27-3ubuntu1",
            "libc-bin-dbgsym": "2.27-3ubuntu1",
            "libc-dev-bin": "2.27-3ubuntu1",
            "libc6-amd64": "2.27-3ubuntu1",
            "libc6-x32": "2.27-3ubuntu1",
            "libc6-s390": "2.27-3ubuntu1",
            "libc6-dev-armel": "2.27-3ubuntu1",
            "libc6-i386-dbgsym": "2.27-3ubuntu1",
            "locales": "2.27-3ubuntu1",
            "libc-dev-bin-dbgsym": "2.27-3ubuntu1",
            "libc6-x32-dbgsym": "2.27-3ubuntu1"
        }
    ]
}