Skip to content
Fencer Intel
high 7.5

CVE-2018-7284 in the critical feed json

A Buffer Overflow issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk th…

published 2018-02-22 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-19018

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
66.2%
EPSS 66.2% chance of exploitation in 30 days, percentile 99.2%
public exploits
1
Exploit-DB

Summary

A Buffer Overflow issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. When processing a SUBSCRIBE request, the res_pjsip_pubsub module stores the accepted formats present in the Accept headers of the request. This code did not limit the number of headers it processed, despite having a fixed limit of 32. If more than 32 Accept headers were present, the code would write outside of its memory and cause a crash.

Patch / fix

  • asterisk Debian 14 1:13.20.0~dfsg-1

debian advisories DEBIAN-CVE-2018-7284

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-2018-7284 updated cvss 6.3

asterisk: memory corruption in SUBSCRIBE message with a large Accept value

  • 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

Timeline

  1. Published
  2. First public exploit (EDB-44184)

Exploit prediction

66.17% chance of exploitation in the next 30 days, higher than 99.2% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-44184 Asterisk chan_pjsip 15.2.0 - 'SUBSCRIBE' Stack Corruption dos, 2018-02-27

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel 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.