An issue was discovered in Asterisk Open Source through 13.27.0, 14.x and 15.x through 15.7.2, and 16.x through 16.4.0, and Certified Asterisk through 13.21-cert3
Published Jul 12, 2019
5.3
MEDIUMCVSS 3.1
EPSS 4.01%
Description
An issue was discovered in Asterisk Open Source through 13.27.0, 14.x and 15.x through 15.7.2, and 16.x through 16.4.0, and Certified Asterisk through 13.21-cert3. A pointer dereference in chan_sip while handling SDP negotiation allows an attacker to crash Asterisk when handling an SDP answer to an outgoing T.38 re-invite. To exploit this vulnerability an attacker must cause the chan_sip module to send a T.38 re-invite request to them. Upon receipt, the attacker must send an SDP answer containing both a T.38 UDPTL stream and another media stream containing only a codec (which is not permitted according to the chan_sip configuration).
Affected products
No data.
Configuration 1
- 1.8.0.0
- 1.8.0.0
- 1.8.0.0
- 1.8.0.0
- 1.8.0.0
- 1.8.0.0
- 1.8.0.0
- 1.8.0.0
- 1.8.0.0
- 1.8.0.0
- 1.8.0.0
- 1.8.1.0
- 1.8.1.0
- 1.8.2.0
- 1.8.2.0
- 1.8.3.0
- 1.8.3.0
- 1.8.3.0
- 1.8.3.0
- 1.8.4.0
- 1.8.4.0
- 1.8.4.0
- 1.8.4.0
- 1.8.5.0
- 1.8.5.0
- 1.8.6.0
- 1.8.6.0
- 1.8.6.0
- 1.8.6.0
- 1.8.7.0
- 1.8.7.0
- 1.8.7.0
- 1.8.8.0
- 1.8.8.0
- 1.8.8.0
- 1.8.8.0
- 1.8.8.0
- 1.8.8.0
- 1.8.9.0
- 1.8.9.0
- 1.8.9.0
- 1.8.9.0
- 1.8.10.0
- 1.8.10.0
- 1.8.10.0
- 1.8.10.0
- 1.8.10.0
- 1.8.11
- 1.8.11
- 1.8.11
- 1.8.11
- 1.8.11
- 1.8.11
- 1.8.11
- 1.8.11
- 1.8.11
- 1.8.11
- 1.8.11
- 1.8.11
- 1.8.11
- 1.8.11
- 1.8.11
- 1.8.11
- 1.8.11.0
- 1.8.11.0
- 1.8.11.0
- 1.8.11.0
- 1.8.12.0
- 1.8.12.0
- 1.8.12.0
- 1.8.12.0
- 1.8.13.0
- 1.8.13.0
- 1.8.13.0
- 1.8.14.0
- 1.8.14.0
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.28
- 1.8.28
- 1.8.28
- 1.8.28
- 1.8.28
- 1.8.28
- 1.8.28
- 1.8.28
- 1.8.28.0
- 11.0.0
- 11.0.0
- 11.0.0
- 11.1.0
- 11.1.0
- 11.1.0
- 11.1.0
- 11.2
- 11.2
- 11.2
- 11.2
- 11.3.0
- 11.3.0
- 11.3.0
- 11.4.0
- 11.4.0
- 11.4.0
- 11.4.0
- 11.5.0
- 11.5.0
- 11.5.0
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6
- 11.6.0
- 11.6.0
- 11.6.0
- 11.6.0
- 13.1
- 13.1
- 13.1
- 13.1
- 13.1
- 13.1
- 13.1
- 13.1
- 13.1
- 13.1
- 13.1
- 13.1.0
- 13.1.0
- 13.1.0
- 13.8
- 13.8
- 13.8
- 13.8
- 13.8
- 13.8
- 13.8
- 13.8
- 13.8
- 13.8
- 13.8
- 13.8.0
- 13.8.0
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13-cert2
- 13.18
- 13.18
- 13.18
- 13.18
- 13.18
- 13.18
- 13.18
- 13.21
- 13.21
- 13.21
- 13.21
- 13.21
Configuration 2
Configuration 3
- 8.0
- 9.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:S/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 4.01% (0.04013) | 90.26th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.03% (0.04031) | 89.23th | v5 (v2026.06.15) |
| Apr 7, 2025 | 2.68% (0.02679) | 84.58th | v4 (v2025.03.14) |
| Mar 30, 2025 | 0.79% (0.00791) | 71.68th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.86% (0.01863) | 72.04th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.79% (0.00791) | 72.23th | v4 (v2025.03.14) |
| Dec 17, 2024 | 4.19% (0.04187) | 92.13th | v3 (v2023.03.01) |
| Jul 5, 2024 | 0.55% (0.00553) | 77.68th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.47% (0.00473) | 74.92th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.47% (0.00473) | 71.88th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.92% (0.01916) | 77.45th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.80% (0.01796) | 74.90th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.37% (0.05372) | 76.24th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.63% (0.03630) | 71.73th | v5 (v2026.06.15) |
| Jan 6, 2022 | 3.63% (0.03630) | 71.48th | v1 |
| Sep 1, 2021 | 0.83% (0.00833) | 57.50th | v1 |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (4)
- http://downloads.digium.com/pub/security/AST-2019-003.html x_refsource_CONFIRMVendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-28465 x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/11/msg00038.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://downloads.digium.com/pub/security/AST-2019-003.html | x_refsource_CONFIRMVendor Advisory | |
| https://issues.asterisk.org/jira/browse/ASTERISK-28465 | x_refsource_CONFIRMIssue TrackingVendor Advisory | |
| https://lists.debian.org/debian-lts-announce/2019/11/msg00038.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory |
Change history (0)
No recorded changes yet.