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CVE-2023-3354— Improper i/o watch removal in tls handshake can lead to remote unauthenticated denial of service

CVSS 7.5 · High EPSS 0.12% · P31
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I. Basic Information for CVE-2023-3354

Vulnerability Information
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Vulnerability Title
Improper i/o watch removal in tls handshake can lead to remote unauthenticated denial of service
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QEMU cleans up the connection again, resulting in a NULL pointer dereference issue. This could allow a remote unauthenticated client to cause a denial of service.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
空指针解引用
Source: NVD (National Vulnerability Database)
Vulnerability Title
QEMU 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）个人开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。 Qemu qemu-kvm存在安全漏洞，该漏洞源于TLS handshake不正确删除会导致拒绝服务（DoS）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
-qemu--
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
Red HatRed Hat Enterprise Linux 7-cpe:/o:redhat:enterprise_linux:7
Red HatRed Hat Enterprise Linux 7-cpe:/o:redhat:enterprise_linux:7
Red HatRed Hat Enterprise Linux 8-cpe:/o:redhat:enterprise_linux:8
Red HatRed Hat Enterprise Linux 8 Advanced Virtualization-cpe:/a:redhat:advanced_virtualization:8::el8
Red HatRed Hat Enterprise Linux 9-cpe:/o:redhat:enterprise_linux:9
Red HatRed Hat OpenStack Platform 13 (Queens)-cpe:/a:redhat:openstack:13
FedoraFedora--
FedoraExtra Packages for Enterprise Linux--

II. Public POCs for CVE-2023-3354

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III. Intelligence Information for CVE-2023-3354

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Same Patch Batch · n/a · 2023-07-11 · 24 CVEs total

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CVE-2023-34561RobTop Games Geometry Dash 安全漏洞

Showing top 20 of 24 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: qemu
Same vendor: n/a
Same weakness: CWE-476

V. Comments for CVE-2023-3354

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