CVE-2017-17090
HighPublic exploitIf the chan_skinny (aka SCCP protocol) channel driver is flooded with certain requests, it can cause the asterisk process to use excessive amounts of virtual memory, eventually causing asterisk to stop processing requests of any kind.
Published Dec 2, 2017 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2017-17090, DLA-1225-1, DSA-4076-1, UBUNTU-CVE-2017-17090
Key Facts
Patch immediately- CVE-2017-17090 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Asterisk (Digium), Certified Asterisk (Digium).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 82% probability of exploitation in the next 30 days.
- Fixed versions are available, including Asterisk 1:1.8.13.1~dfsg1-3+deb7u8, Asterisk 1:11.13.1~dfsg-2+deb8u5, Asterisk 1:13.14.1~dfsg-2+deb9u3.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (30-day exploit likelihood)
82%
Higher than 99.6% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2017-17090 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
An issue was discovered in chan_skinny.c in Asterisk Open Source 13.18.2 and older, 14.7.2 and older, and 15.1.2 and older, and Certified Asterisk 13.13-cert7 and older. If the chan_skinny (aka SCCP protocol) channel driver is flooded with certain requests, it can cause the asterisk process to use excessive amounts of virtual memory, eventually causing asterisk to stop processing requests of any kind.
Affected Products
20 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| AsteriskDigium | See advisory | 13.8.2 |
| Certified AsteriskDigium | 13.13-cert1, 13.13-cert1_rc1, 13.13-cert1_rc2, 13.13-cert1_rc3, 13.13-cert1_rc4, 13.13-cert2, 13.13-cert3, 13.13-cert4 | 13.13 |
Patched Releases
Asterisk
1:1.8.13.1~dfsg1-3+deb7u8, 1:11.13.1~dfsg-2+deb8u5, 1:13.14.1~dfsg-2+deb9u3, 1:13.18.3~dfsg-1, 13.8.2
Certified Asterisk
13.13
Timeline
Publicly disclosed
Dec 2, 2017
Last updated
Aug 4, 2026
Weakness Type
- CWE-459 Incomplete Cleanup
References
- advisoryhttp://downloads.digium.com/pub/security/AST-2017-013.html
- advisoryhttps://issues.asterisk.org/jira/browse/ASTERISK-27452
- advisoryhttps://security-tracker.debian.org/tracker/CVE-2017-17090
- advisoryhttps://ubuntu.com/security/CVE-2017-17090
- advisoryhttps://www.cve.org/CVERecord?id=CVE-2017-17090
FAQ
Common Questions.
An issue was discovered in chan_skinny.c in Asterisk Open Source 13.18.2 and older, 14.7.2 and older, and 15.1.2 and older, and Certified Asterisk 13.13-cert7 and older.
Affected: Asterisk (Digium); Certified Asterisk (Digium) versions 13.13-cert1, 13.13-cert1_rc1, 13.13-cert1_rc2, 13.13-cert1_rc3, 13.13-cert1_rc4, 13.13-cert2, 13.13-cert3, 13.13-cert4. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Asterisk 1:1.8.13.1~dfsg1-3+deb7u8, Asterisk 1:11.13.1~dfsg-2+deb8u5, Asterisk 1:13.14.1~dfsg-2+deb9u3.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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