Debian Security Bug TrackerDEBIANCVE:CVE-2021-43804CVE-2021-43804
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
7.3 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
0.003 Low
EPSS
Percentile
71.3%
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In affected versions if the incoming RTCP BYE message contains a reason’s length, this declared length is not checked against the actual received packet size, potentially resulting in an out-of-bound read access. This issue affects all users that use PJMEDIA and RTCP. A malicious actor can send a RTCP BYE message with an invalid reason length. Users are advised to upgrade as soon as possible. There are no known workarounds.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 11 | all | asterisk | < 1:16.28.0~dfsg-0+deb11u1 | asterisk_1:16.28.0~dfsg-0+deb11u1_all.deb |
| Debian | 999 | all | asterisk | < 1:18.12.0~dfsg+~cs6.12.40431413-1 | asterisk_1:18.12.0~dfsg+~cs6.12.40431413-1_all.deb |
| Debian | 12 | all | ring | < 20230206.0~ds1-1 | ring_20230206.0~ds1-1_all.deb |
| Debian | 11 | all | ring | <= 20210112.2.b757bac~ds1-1 | ring_20210112.2.b757bac~ds1-1_all.deb |
| Debian | 999 | all | ring | < 20230206.0~ds1-1 | ring_20230206.0~ds1-1_all.deb |
| Debian | 13 | all | ring | < 20230206.0~ds1-1 | ring_20230206.0~ds1-1_all.deb |
Related
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
7.3 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
0.003 Low
EPSS
Percentile
71.3%