CVE-2019-6250

描述

A pointer overflow, with code execution, was discovered in ZeroMQ libzmq (aka 0MQ) 4.2.x and 4.3.x before 4.3.1. A v2_decoder.cpp zmq::v2_decoder_t::size_ready integer overflow allows an authenticated attacker to overwrite an arbitrary amount of bytes beyond the bounds of a buffer, which can be leveraged to run arbitrary code on the target system. The memory layout allows the attacker to inject OS commands into a data structure located immediately after the problematic buffer (i.e., it is not necessary to use a typical buffer-overflow exploitation technique that changes the flow of control).

如何修補 CVE-2019-6250

要修補 CVE-2019-6250,請將受影響套件升級到下列已修補版本。

• —升級至 4.3.1-r0 或更新版本
• —升級至 4.3.1-1 或更新版本
• —升級至 4.2.1-4+deb9u1 或更新版本

CVE-2019-6250 正在被利用嗎?

中等 — EPSS 為 9.4%,可持續追蹤但非最高優先。

受影響套件(3)

• from 0, < 4.3.1-r0
• from 0, < 4.3.1-1
• from 0, < 4.2.1-4+deb9u1

CVSS 分數

參考連結(2)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2019-6250
• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2019-6250