Buffer overflow in Systemd_project Systemd

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. A malicious DNS server can exploit this via a response with a specially crafted TCP payload to trick sys…

Vulnerability class: Buffer Overflow

EPSS: 0.013 (80.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (x_refsource_CONFIRM, Broken Link)
  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
  • cve@mitre.org (x_refsource_CONFIRM, Patch, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2017-9445?
CVE-2017-9445 is a high-severity vulnerability in Systemd_project Systemd, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2017-06-28.
How severe is CVE-2017-9445?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2017-9445 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.