CVE-2017-9445
High
Description
In systemd through 233, certain sizes passed to dns_packet_new in systemd-resolved can cause it to allocate a buffer that's too small. A malicious DNS server can exploit this via a response with a specially crafted TCP payload to trick systemd-resolved into allocating a buffer that's too small, and subsequently write arbitrary data beyond the end of it.
SeverityHigh
CVSS7.5
Exploit probability—
ProductSystemd
PublishedJun 28, 2017
First seenJun 28, 2017
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| systemd_project systemd | 223 ≤ v ≤ 233 | — |
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