Ubuntu.comUB:CVE-2021-26713CVE-2021-26713
4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.002 Low
EPSS
Percentile
52.9%
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.
References
downloads.asterisk.org/pub/security/
downloads.asterisk.org/pub/security/AST-2021-004.html
issues.asterisk.org/jira/browse/ASTERISK-29205
launchpad.net/bugs/cve/CVE-2021-26713
nvd.nist.gov/vuln/detail/CVE-2021-26713
security-tracker.debian.org/tracker/CVE-2021-26713
www.cve.org/CVERecord?id=CVE-2021-26713
Related
4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.002 Low
EPSS
Percentile
52.9%