CVE-2021-3595

LowCVSS 3.8/10Last modified Jun 17, 2026

Description

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.

Metrics

CVSS 3.1 3.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Weakness enumeration

CWE-824

Affected software

No affected versions have been published.

Timeline

Published: Jun 15, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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