The IAX2 channel driver (chan_iax2) for Asterisk 1.2.x before 1.2.9 and 1.0.x before 1.0.11 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via truncated IAX 2 (IAX2) video frames, which bypasses a length check and leads to a buffer overflow involving negative length check
Published Jun 7, 2006
7.5
HIGHCVSS 2.0
EPSS 4.29%
Description
The IAX2 channel driver (chan_iax2) for Asterisk 1.2.x before 1.2.9 and 1.0.x before 1.0.11 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via truncated IAX 2 (IAX2) video frames, which bypasses a length check and leads to a buffer overflow involving negative length check. NOTE: the vendor advisory claims that only a DoS is possible, but the original researcher is reliable.
Affected products
No data.
- 1.0.7
- 1.0.8
- 1.0.9
- 1.0.10
- 1.2.0_beta1
- 1.2.0_beta2
- 1.2.6
- 1.2.7
- 1.2.8
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:N/C:P/I:P/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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.29% (0.04293) | 90.82th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.21% (0.04214) | 89.66th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.35% (0.00351) | 55.42th | v4 (v2025.03.14) |
| Dec 17, 2024 | 9.99% (0.09987) | 94.87th | v3 (v2023.03.01) |
| Dec 12, 2024 | 15.04% (0.15044) | 96.03th | v3 (v2023.03.01) |
| Apr 27, 2024 | 14.93% (0.14929) | 95.74th | v3 (v2023.03.01) |
| Dec 18, 2023 | 12.37% (0.12371) | 94.88th | v3 (v2023.03.01) |
| Sep 11, 2023 | 9.93% (0.09932) | 94.13th | v3 (v2023.03.01) |
| May 19, 2023 | 12.37% (0.12371) | 94.56th | v3 (v2023.03.01) |
| Mar 7, 2023 | 10.17% (0.10173) | 93.97th | v3 (v2023.03.01) |
| Mar 6, 2023 | 8.23% (0.08228) | 93.49th | v2 (v2022.01.01) |
| Apr 1, 2022 | 8.23% (0.08228) | 92.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 8.23% (0.08228) | 82.23th | v2 (v2022.01.01) |
References (14)
- http://secunia.com/advisories/20497 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://secunia.com/advisories/20658 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/20899 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/21222 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://securitytracker.com/id?1016236 vdb-entryx_refsource_SECTRACKPatch
- http://www.asterisk.org/node/95 x_refsource_CONFIRM
- http://www.debian.org/security/2006/dsa-1126 vendor-advisoryx_refsource_DEBIAN
- http://www.gentoo.org/security/en/glsa/glsa-200606-15.xml vendor-advisoryx_refsource_GENTOO
- http://www.novell.com/linux/security/advisories/2006_38_security.html vendor-advisoryx_refsource_SUSE
- http://www.securityfocus.com/archive/1/436127/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/436671/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/18295 vdb-entryx_refsource_BIDPatch
- http://www.vupen.com/english/advisories/2006/2181 vdb-entryx_refsource_VUPENVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/27045 vdb-entryx_refsource_XF
Change history (0)
No recorded changes yet.