CVE-2021-3595 is an invalid pointer initialization flaw in the SLiRP networking implementation of QEMU, specifically within the tftp_input() function, affecting libslirp versions prior to 4.6.0 and various distributions like Debian and Fedora. This vulnerability, triggered by processing undersized UDP packets, could lead to out-of-bounds read access or indirect host memory disclosure, primarily impacting data confidentiality. Rated with a CVSS score of 3.8 (LOW), it requires local access and has low attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.6.0CPE matchmatch criteria | cpe:2.3:a:libslirp_project:libslirp:*:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | ||
33CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
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The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.