Vulnerability Database

289,697

Total vulnerabilities in the database

CVE-2021-26713

A stack-based buffer overflow in res_rtp_asterisk.c in Sangoma Asterisk before 16.16.1, 17.x before 17.9.2, and 18.x before 18.2.1 and Certified Asterisk before 16.8-cert6 allows an authenticated WebRTC client to cause an Asterisk crash by sending multiple hold/unhold requests in quick succession. This is caused by a signedness comparison mismatch.

  • Published: Feb 19, 2021
  • Updated: Apr 14, 2023
  • CVE: CVE-2021-26713
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.5
  • AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Low
  • Score: 4
  • AV:N/AC:L/Au:S/C:N/I:N/A:P

CWEs:

Software From Fixed in
digium / certified_asterisk 16.8-cert1-rc1 16.8-cert1-rc1.x
digium / certified_asterisk 16.8-cert1-rc2 16.8-cert1-rc2.x
digium / certified_asterisk 16.8-cert1-rc3 16.8-cert1-rc3.x
digium / certified_asterisk 16.8-cert1-rc4 16.8-cert1-rc4.x
digium / certified_asterisk 16.8-cert2 16.8-cert2.x
digium / certified_asterisk 16.8-cert3 16.8-cert3.x
digium / certified_asterisk 16.8-cert4 16.8-cert4.x
digium / certified_asterisk 16.8-cert4-rc1 16.8-cert4-rc1.x
digium / certified_asterisk 16.8-cert4-rc2 16.8-cert4-rc2.x
digium / certified_asterisk 16.8-cert4-rc3 16.8-cert4-rc3.x
digium / certified_asterisk 16.8-cert4-rc4 16.8-cert4-rc4.x
digium / certified_asterisk 16.8 16.8.x
digium / certified_asterisk 16.8-cert5 16.8-cert5.x
digium / asterisk 16.0.0 16.16.1
digium / asterisk 17.0.0 17.9.2
digium / asterisk 18.0.0 18.2.1