PT-2018-3507 · Qemu+2 · Qemu+2

Li Quang + 1 · Published 2018-12-13 · Updated 2024-06-15 · CVE-2018-20216

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions: QEMU (affected versions not specified)

Description: The issue is related to the pvrdma idx ring has function in the PVRDMA emulator of QEMU, which can lead to an infinite loop due to an unreachable exit condition. This can be exploited by a remote attacker to cause a denial of service. The problem arises from un-checked return values in hw/rdma/vmw/pvrdma dev ring.c, specifically the mishandling of -1 return values.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Unchecked Return Value

Infinite Loop

Weakness Enumeration

CWE-252

CWE-835

Related Identifiers

ALT-PU-2019-1973

ALT-PU-2019-1990

BDU:2020-03211

CVE-2018-20216

OPENSUSE-SU-2024:11287-1

USN-3923-1

Affected Products

Alt Linux

Qemu

Ubuntu

References · 202

• https://usn.ubuntu.com/3923-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-16872 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12130 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20124 · Security Note
• https://ubuntu.com/security/CVE-2019-3812 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20125 · Security Note
• https://ubuntu.com/security/CVE-2018-20124 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-03199 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8934 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20216 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20126 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3812 · Security Note
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20211008SE16 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16867 · Security Note
• https://errata.altlinux.org/ALT-PU-2019-1973 · Vendor Advisory