DEBIAN-CVE-2021-3595
Record from OSV · Published June 15, 2021
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| libslirp | Debian:14 | 4.6.1-1 |
| libslirp | Debian:13 | 4.6.1-1 |
| libslirp | Debian:12 | 4.6.1-1 |
| qemu | Debian:14 | 1:4.1-2 |
| qemu | Debian:12 | 1:4.1-2 |
| qemu | Debian:13 | 1:4.1-2 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | libslirp | 0 |
| Debian | libslirp | |
| Debian:13 | libslirp | 0 |
| Debian:12 | libslirp | 0 |
| Debian:14 | qemu | 0 |
| Debian:12 | qemu | 0 |
| Debian:13 | qemu | 0 |
Timeline
- Jun 15, 2021 CVE Published
- Oct 23, 2026 CVE Updated
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