PT-2018-3506 · Qemu+2 · Qemu+2

Li Quang + 1 · Published 2018-12-12 · Updated 2024-06-15 · CVE-2018-20191

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 errors in pointer dereferencing in the uar read and uar write functions of the PVRDMA emulator's virtual network adapter in QEMU. This can be exploited by a remote attacker to cause a denial of service. The problem arises because QEMU does not implement a read operation, such as uar read, which by analogy to uar write, allows attackers to cause a denial of service through a NULL pointer dereference.

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

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2019-1973

ALT-PU-2019-1990

BDU:2020-03203

CVE-2018-20191

OPENSUSE-SU-2024:11287-1

USN-3923-1

Affected Products

Alt Linux

Qemu

Ubuntu

References · 206

• https://usn.ubuntu.com/3923-1 · Vendor Advisory
• http://openwall.com/lists/oss-security/2018/12/18/1 · Patch
• 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
• https://errata.altlinux.org/ALT-PU-2019-1973 · Vendor Advisory