PT-2018-2774 · Gnu+5 · Glibc+5

Andreas Schwab · Published 2018-05-17 · Updated 2024-06-15 · CVE-2018-11237

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions glibc versions 2.27 and earlier

Description The issue is caused by a buffer overflow in the mempcpy function implementation, specifically in the AVX-512-optimized version. This overflow can occur when the function writes data beyond the target buffer, leading to a potential denial of service. The vulnerable function is mempcpy avx512 no vzeroupper.

Recommendations For glibc versions 2.27 and earlier, consider disabling the mempcpy avx512 no vzeroupper function as a temporary workaround until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-119

Related Identifiers

ALT-PU-2019-3114

BDU:2019-01772

CESA-2018_3092

CVE-2018-11237

OPENSUSE-SU-2018_1600-1

OPENSUSE-SU-2018_1633-1

OPENSUSE-SU-2018_2159-1

OPENSUSE-SU-2024:10792-1

RHSA-2018:3092

RHSA-2018_3092

SUSE-SU-2018:1562-1

SUSE-SU-2018:1562-2

SUSE-SU-2018:1991-1

USN-4416-1

Affected Products

Alt Linux

Centos

Red Hat

Suse

Ubuntu

Glibc

References · 143

• 🔥 https://exploit-db.com/exploits/44750 · Exploit
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18269 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2018:1562-1 · Vendor Advisory
• https://usn.ubuntu.com/4416-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10792-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-11237 · Security Note
• https://cve.org/CVERecord?id=CVE-2018-11237 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2018:1991-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-11237 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-11236 · Security Note
• https://access.redhat.com/errata/RHSA-2018:3092 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-01772 · Security Note
• https://bdu.fstec.ru/vul/2018-00365 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10739 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6485 · Security Note