Vulnerability Details : CVE-2019-6250
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).
Vulnerability category: Overflow
Exploit prediction scoring system (EPSS) score for CVE-2019-6250
Probability of exploitation activity in the next 30 days: 70.18%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 98 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2019-6250
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
---|---|---|---|---|---|
9.0
|
HIGH | AV:N/AC:L/Au:S/C:C/I:C/A:C |
8.0
|
10.0
|
[email protected] |
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
[email protected] |
CWE ids for CVE-2019-6250
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The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.Assigned by: [email protected] (Primary)
References for CVE-2019-6250
-
https://github.com/zeromq/libzmq/releases/tag/v4.3.1
Third Party Advisory
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https://security.gentoo.org/glsa/201903-22
Third Party Advisory
-
https://github.com/zeromq/libzmq/issues/3351
Exploit;Patch;Third Party Advisory
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https://www.debian.org/security/2019/dsa-4368
Third Party Advisory
Products affected by CVE-2019-6250
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:zeromq:libzmq:*:*:*:*:*:*:*:*
- cpe:2.3:a:zeromq:libzmq:*:*:*:*:*:*:*:*