HIGH
The SIP channel driver (chan_sip) in Asterisk before 1.2.18 and 1.4.x before 1.4.3 does not properly parse SIP UDP packets that do not contain a valid response code, which allows remote attackers to cause a denial of service (crash)
Published Apr 26, 2007
7.8
HIGHCVSS 2.0
EPSS 2.39%
Description
The SIP channel driver (chan_sip) in Asterisk before 1.2.18 and 1.4.x before 1.4.3 does not properly parse SIP UDP packets that do not contain a valid response code, which allows remote attackers to cause a denial of service (crash).
Affected products
No data.
OR
- 1.2.0_beta1
- 1.2.0_beta2
- 1.2.10
- 1.2.11
- 1.2.12
- 1.2.13
- 1.2.14
- 1.2.15
- 1.2.16
- 1.2.17
- 1.4.1
- 1.4.2
- 1.4_beta
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.
7.8 HIGH NVD
AV:N/AC:L/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.39% 0.02392
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02392
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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.39% (0.02392) | 83.37th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.39% (0.02392) | 81.75th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.77% (0.01774) | 81.44th | v4 (v2025.03.14) |
| Dec 17, 2024 | 8.98% (0.08983) | 94.60th | v3 (v2023.03.01) |
| Jun 21, 2024 | 16.27% (0.16268) | 96.03th | v3 (v2023.03.01) |
| Apr 6, 2024 | 13.52% (0.13517) | 95.49th | v3 (v2023.03.01) |
| Feb 28, 2024 | 11.39% (0.11395) | 95.06th | v3 (v2023.03.01) |
| Jan 21, 2024 | 9.73% (0.09734) | 94.25th | v3 (v2023.03.01) |
| Dec 14, 2023 | 10.17% (0.10175) | 94.36th | v3 (v2023.03.01) |
| Sep 28, 2023 | 9.85% (0.09853) | 94.14th | v3 (v2023.03.01) |
| May 2, 2023 | 9.26% (0.09257) | 93.73th | v3 (v2023.03.01) |
| Mar 7, 2023 | 8.63% (0.08626) | 93.44th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.17% (0.02172) | 80.77th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.17% (0.02172) | 78.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.17% (0.02172) | 57.73th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (10)
- http://bugs.digium.com/view.php?id=9313 x_refsource_MISC
- http://secunia.com/advisories/25582 third-party-advisoryx_refsource_SECUNIA
- http://securityreason.com/securityalert/2644 third-party-advisoryx_refsource_SREASON
- http://www.asterisk.org/files/ASA-2007-011.pdf x_refsource_CONFIRM
- http://www.debian.org/security/2007/dsa-1358 vendor-advisoryx_refsource_DEBIAN
- http://www.novell.com/linux/security/advisories/2007_34_asterisk.html vendor-advisoryx_refsource_SUSE
- http://www.securityfocus.com/archive/1/466882/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/24359 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1017954 vdb-entryx_refsource_SECTRACKPatch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/33892 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://bugs.digium.com/view.php?id=9313 | x_refsource_MISC | |
| http://secunia.com/advisories/25582 | third-party-advisoryx_refsource_SECUNIA | |
| http://securityreason.com/securityalert/2644 | third-party-advisoryx_refsource_SREASON | |
| http://www.asterisk.org/files/ASA-2007-011.pdf | x_refsource_CONFIRM | |
| http://www.debian.org/security/2007/dsa-1358 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.novell.com/linux/security/advisories/2007_34_asterisk.html | vendor-advisoryx_refsource_SUSE | |
| http://www.securityfocus.com/archive/1/466882/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/24359 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1017954 | vdb-entryx_refsource_SECTRACKPatch | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/33892 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Apr 26, 2007
Updated Aug 7, 2024
Reserved Apr 26, 2007
Link CVE-2007-2297
CISA Vulnrichment
Updated n/a