Veracode Vulnerability DatabaseVERACODE:29469Denial Of Service Through SDP Negotiation
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
57.0%
asterisk:sid is vulnerable to denial of service. The vulnerability exists in res_pjsip_session.c in Digium Asterisk where SDP negotiation in PJSIP allows a remote server to potentially crash Asterisk by sending specific SIP responses that cause an SDP negotiation failure.
| CPE | Name | Operator | Version |
|---|---|---|---|
| asterisk:sid | eq | 1:16.15.0~dfsg-1 | |
| asterisk:3.12 | eq | 16.7.0-r0 | |
| asterisk:edge | eq | 16.7.0-r0 |
References
packetstormsecurity.com/files/161477/Asterisk-Project-Security-Advisory-AST-2021-005.html
seclists.org/fulldisclosure/2021/Feb/61
downloads.asterisk.org/pub/security/
downloads.asterisk.org/pub/security/AST-2021-005.html
issues.asterisk.org/jira/browse/ASTERISK-29196
security-tracker.debian.org/tracker/CVE-2021-26906
Related
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
57.0%