THREATPORT/VULNERABILITY/CVE-2017-9372
HIGH SEVERITY

CVE-2017-9372

Open Source vulnerability

CVSS
7.5
EPSS
4.0%
EPSS pct
89th
Exploited
No known
PJSIP, as used in Asterisk Open Source 13.x before 13.15.1 and 14.x before 14.4.1, Certified Asterisk 13.13 before 13.13-cert4, and other products, allows remote attackers to cause a denial of service (buffer overflow and application crash) via a SIP packet with a crafted CSeq header in conjunction with a Via header that lacks a branch parameter.
Affected vendor
Digium
Affected product
Open Source
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
Published
2017-06-02

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 4.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2017-9372

  • Confirm whether Digium Open Source is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-9372.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-9372

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-9372 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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