CVE-2017-9445 — Out-of-bounds Write in Project Systemd
Severity
7.5HIGHNVD
EPSS
1.7%
top 17.70%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJun 28
Latest updateMay 13
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6
Affected Packages2 packages
Patches
🔴Vulnerability Details
3GHSA▶
GHSA-42xm-66qf-5jj8: 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↗2022-05-13
CVEList▶
CVE-2017-9445: 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↗2017-06-28
OSV▶
CVE-2017-9445: 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↗2017-06-28