CVEvulnerability
CVE-2017-9445
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2017-06-28
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-787
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.
Affected configurations
• systemd project systemd (>= 223 <= 233)
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- http://openwall.com/lists/oss-security/2017/06/27/8 Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/99302 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038806 Third Party Advisory, VDB Entry
- https://launchpad.net/bugs/1695546 Broken Link
- http://openwall.com/lists/oss-security/2017/06/27/8 Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/99302 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038806 Third Party Advisory, VDB Entry
- https://launchpad.net/bugs/1695546 Broken Link