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CVE-2017-9445

high · 7.5

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.

7.5
CVSS
54.8%
EPSS (exploit prob.)
99th
EPSS percentile
2017-06-28
Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CWE-787

Affected products

VendorProductAffected versions
systemd_projectsystemd>= 223, <= 233

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2017-9445