Buffer overflow in Digium Certified Asterisk
CVE-2017-9372
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.040 (90.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.040 · newest: 0.040 · change: 0.000
Affected products
- Digium Certified Asterisk — versions 13.13.0
- Digium Open Source — versions 13.0.0, 13.1.0, 13.2.0
Weakness classification (CWE)
References
- bugs.debian.org/863901 (Mailing List, Third Party Advisory)
- downloads.asterisk.org/pub/security/AST-2017-002.txt (Third Party Advisory)
- www.securityfocus.com/bid/98572 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2017/dsa-3933 (vendor-advisory)
- www.securitytracker.com/id/1038529 (vdb-entry)
Frequently asked questions
- What is CVE-2017-9372?
- CVE-2017-9372 is a high-severity vulnerability in Digium Certified Asterisk, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2017-06-02.
- How severe is CVE-2017-9372?
- High severity. CVSS v3 base score is 7.5 out of 10.