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Fencer Vulns
medium 6.5

CVE-2019-12827 json

Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2, 16.4.0 and earlier allows remote authentic…

published 2019-07-12 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-4407

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.0%
EPSS 4.0% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2, 16.4.0 and earlier allows remote authenticated users to crash Asterisk by sending a specially crafted SIP MESSAGE message.

Patch / fix

  • digium asterisk 13.27.0, 15.7.2, 16.4.0
  • asterisk Debian 14 1:16.2.1~dfsg-2

debian advisories DEBIAN-CVE-2019-12827

  • asterisk Alpine 3.10 16.3.0-r2
  • asterisk Alpine 3.24, Alpine 3.23, Alpine 3.22 +11 more 16.4.1-r0
  • asterisk Alpine 3.8, Alpine 3.7 15.6.2-r0
  • asterisk Alpine 3.9 15.7.4-r0

alpine advisories ALPINE-CVE-2019-12827

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-12827 updated cvss 4.3

asterisk: buffer overflow in res_pjsip_messaging allows for a crash and DoS

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.04% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.