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CVE-2021-3592

Public on 2021-06-15
Modified on 2024-01-30
Description

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the bootp_input() function and could occur while processing a udp packet that is smaller than the size of the 'bootp_t' structure. A malicious guest could use this flaw to leak 10 bytes of uninitialized heap memory from the host. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.

Severity
Low
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CVSS v3 Base Score
3.8
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core qemu 2023-07-20 17:29 ALAS2-2023-2169

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
NVD CVSSv2 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N
NVD CVSSv3 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N