Vulnerability Database

289,697

Total vulnerabilities in the database

CVE-2021-26906

An issue was discovered in res_pjsip_session.c in Digium Asterisk through 13.38.1; 14.x, 15.x, and 16.x through 16.16.0; 17.x through 17.9.1; and 18.x through 18.2.0, and Certified Asterisk through 16.8-cert5. An SDP negotiation vulnerability in PJSIP allows a remote server to potentially crash Asterisk by sending specific SIP responses that cause an SDP negotiation failure.

  • Published: Feb 18, 2021
  • Updated: Apr 14, 2023
  • CVE: CVE-2021-26906
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.9
  • AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Low
  • Score: 4.3
  • AV:N/AC:M/Au:N/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 18.2.1
digium / asterisk 13.0.0 13.38.2