channels/chan_sip.c in Asterisk Open Source 1.8.x before 1.8.13.1 and 10.x before 10.5.2, Asterisk Business Edition C.3.x before C.3.7.5, Certified Asterisk 1.8.11-certx before 1.8.11-cert4, and Asterisk Digiumphones 10.x.x-digiumphones before 10.5.2-digiumphones does not properly handle a provisional response to a SIP reINVITE request, which allows remote authenticated users to cause a denial of service (RTP port exhaustion) via sessions that lack final responses
Published Jul 9, 2012
4.0
MEDIUMCVSS 2.0
EPSS 3.20%
Description
channels/chan_sip.c in Asterisk Open Source 1.8.x before 1.8.13.1 and 10.x before 10.5.2, Asterisk Business Edition C.3.x before C.3.7.5, Certified Asterisk 1.8.11-certx before 1.8.11-cert4, and Asterisk Digiumphones 10.x.x-digiumphones before 10.5.2-digiumphones does not properly handle a provisional response to a SIP reINVITE request, which allows remote authenticated users to cause a denial of service (RTP port exhaustion) via sessions that lack final responses.
Affected products
No data.
Configuration 1
- c.3.1
- c.3.3
- c.3.7.4
Configuration 2
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.1
- 1.8.1
- 1.8.1.1
- 1.8.1.2
- 1.8.2
- 1.8.2.1
- 1.8.2.2
- 1.8.2.3
- 1.8.2.4
- 1.8.3
- 1.8.3
- 1.8.3
- 1.8.3
- 1.8.3.1
- 1.8.3.2
- 1.8.3.3
- 1.8.4
- 1.8.4
- 1.8.4
- 1.8.4
- 1.8.4.1
- 1.8.4.2
- 1.8.4.3
- 1.8.4.4
- 1.8.5
- 1.8.5
- 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
- 1.8.7.1
- 1.8.8.0
- 1.8.8.0
- 1.8.8.0
- 1.8.8.0
- 1.8.8.0
- 1.8.8.1
- 1.8.8.2
- 1.8.9.0
- 1.8.9.0
- 1.8.9.0
- 1.8.9.0
- 1.8.9.2
- 1.8.9.3
- 1.8.11.0
- 1.8.11.0
- 1.8.11.0
- 1.8.11.1
- 1.8.13.0
- 1.8.13.0
- 1.8.13.0
- 1.8.8.0
- 1.8.9.1
- 1.8.11
- 1.8.11
Configuration 3
- 10.0.0
- 10.0.0
- 10.0.0
- 10.0.0
- 10.0.0
- 10.0.0
- 10.1.0
- 10.1.0
- 10.1.0
- 10.2.0
- 10.2.0
- 10.2.0
- 10.2.0
- 10.2.0
- 10.3.0
- 10.3.0
- 10.3.0
- 10.4.0
- 10.4.0
- 10.4.0
- 10.5.0
- 10.5.0
- 10.5.0
- 10.5.1
Configuration 4
- 10.0.0
- 10.0.0
- 10.0.0
- 10.0.0
- 10.0.0
- 10.0.0
- 10.0.1
- 10.1.0
- 10.1.0
- 10.1.0
- 10.1.1
- 10.1.2
- 10.1.3
- 10.2.0
- 10.2.0
- 10.2.0
- 10.2.0
- 10.2.0
- 10.2.1
- 10.3.0
- 10.3.0
- 10.3.0
- 10.3.1
- 10.4.0
- 10.4.0
- 10.4.0
- 10.4.0
- 10.4.1
- 10.4.2
- 10.5.0
- 10.5.0
- 10.5.0
- 10.5.1
Configuration 5
- 1.8.11
- 1.8.11
- 1.8.11
- 1.8.11
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.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/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 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.20% (0.03197) | 87.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.20% (0.03197) | 86.42th | v5 (v2026.06.15) |
| Mar 30, 2025 | 7.19% (0.07186) | 90.73th | v4 (v2025.03.14) |
| Mar 29, 2025 | 33.68% (0.33677) | 95.24th | v4 (v2025.03.14) |
| Mar 17, 2025 | 7.19% (0.07186) | 90.93th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.04% (0.01040) | 84.62th | v3 (v2023.03.01) |
| Mar 30, 2024 | 1.04% (0.01040) | 83.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.04% (0.01040) | 81.64th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.23% (0.01232) | 67.28th | v2 (v2022.01.01) |
| Dec 23, 2022 | 1.23% (0.01232) | 66.86th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.23% (0.01232) | 64.85th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.23% (0.01232) | 41.02th | v2 (v2022.01.01) |
References (6)
- http://downloads.asterisk.org/pub/security/AST-2012-010.html x_refsource_CONFIRMPatchVendor Advisory
- http://secunia.com/advisories/50687 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/50756 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2012/dsa-2550 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/54327 vdb-entryx_refsource_BID
- https://issues.asterisk.org/jira/browse/ASTERISK-19992 x_refsource_CONFIRM
| Link | Providers | Tags |
|---|---|---|
| http://downloads.asterisk.org/pub/security/AST-2012-010.html | x_refsource_CONFIRMPatchVendor Advisory | |
| http://secunia.com/advisories/50687 | third-party-advisoryx_refsource_SECUNIA | |
| http://secunia.com/advisories/50756 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.debian.org/security/2012/dsa-2550 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/54327 | vdb-entryx_refsource_BID | |
| https://issues.asterisk.org/jira/browse/ASTERISK-19992 | x_refsource_CONFIRM |
Change history (0)
No recorded changes yet.