Alpine Linux Development TeamALPINE:CVE-2021-26906CVE-2021-26906
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack 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
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
5.7 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
57.0%
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Alpine | edge-main | noarch | asterisk | < 18.2.1-r0 | UNKNOWN |
| Alpine | 3.12-main | noarch | asterisk | < 16.16.1-r0 | UNKNOWN |
| Alpine | 3.13-main | noarch | asterisk | < 18.2.1-r0 | UNKNOWN |
| Alpine | 3.14-main | noarch | asterisk | < 18.2.1-r0 | UNKNOWN |
| Alpine | 3.15-main | noarch | asterisk | < 18.2.1-r0 | UNKNOWN |
| Alpine | 3.16-main | noarch | asterisk | < 18.2.1-r0 | UNKNOWN |
| Alpine | 3.17-main | noarch | asterisk | < 18.2.1-r0 | UNKNOWN |
| Alpine | 3.18-main | noarch | asterisk | < 18.2.1-r0 | UNKNOWN |
| Alpine | 3.19-main | noarch | asterisk | < 18.2.1-r0 | UNKNOWN |
| Alpine | 3.20-main | noarch | asterisk | < 18.2.1-r0 | UNKNOWN |
Related
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack 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
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
5.7 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
57.0%