The IAX2 channel driver (chan_iax2) in Asterisk before 1.2.22 and 1.4.x before 1.4.8, Business Edition before B.2.2.1, AsteriskNOW before beta7, Appliance Developer Kit before 0.5.0, and s800i before 1.0.2 allows remote attackers to cause a denial of service (crash) via a crafted (1) LAGRQ or (2) LAGRP frame that contains information elements of IAX frames, which results in a NULL pointer dereference when Asterisk does not properly set an associated variable
Published Jul 18, 2007
5.0
MEDIUMCVSS 2.0
EPSS 26.56%
Description
The IAX2 channel driver (chan_iax2) in Asterisk before 1.2.22 and 1.4.x before 1.4.8, Business Edition before B.2.2.1, AsteriskNOW before beta7, Appliance Developer Kit before 0.5.0, and s800i before 1.0.2 allows remote attackers to cause a denial of service (crash) via a crafted (1) LAGRQ or (2) LAGRP frame that contains information elements of IAX frames, which results in a NULL pointer dereference when Asterisk does not properly set an associated variable.
Affected products
No data.
Configuration 1
- 1.0
- 1.0.6
- 1.0.7
- 1.0.8
- 1.0.9
- 1.0.10
- 1.0.11
- 1.0.12
- 1.2.0_beta1
- 1.2.0_beta2
- 1.2.5
- 1.2.6
- 1.2.7
- 1.2.8
- 1.2.9
- 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
- 1.4.4_2007-04-27
- 1.4_beta
- a
- b.1.3.2
- b.1.3.3
- b.2.2.0
- ≤ 0.4
- beta_5
- beta_6
Configuration 2
- 1.0
- 1.0.1
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: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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 26.56% (0.26560) | 97.96th | v5 (v2026.06.15) |
| Jun 15, 2026 | 26.56% (0.26560) | 97.75th | v5 (v2026.06.15) |
| May 6, 2025 | 24.69% (0.24690) | 95.79th | v4 (v2025.03.14) |
| Mar 30, 2025 | 29.09% (0.29087) | 96.17th | v4 (v2025.03.14) |
| Mar 29, 2025 | 30.61% (0.30605) | 94.81th | v4 (v2025.03.14) |
| Mar 19, 2025 | 29.09% (0.29087) | 95.98th | v4 (v2025.03.14) |
| Mar 17, 2025 | 56.33% (0.56327) | 97.88th | v4 (v2025.03.14) |
| Dec 12, 2024 | 95.24% (0.95244) | 99.43th | v3 (v2023.03.01) |
| May 21, 2024 | 95.42% (0.95417) | 99.37th | v3 (v2023.03.01) |
| Apr 13, 2024 | 95.56% (0.95561) | 99.37th | v3 (v2023.03.01) |
| Dec 20, 2023 | 95.55% (0.95545) | 99.23th | v3 (v2023.03.01) |
| Nov 12, 2023 | 95.50% (0.95505) | 99.20th | v3 (v2023.03.01) |
| Mar 7, 2023 | 95.72% (0.95719) | 98.99th | v3 (v2023.03.01) |
| Mar 6, 2023 | 11.00% (0.10995) | 94.86th | v2 (v2022.01.01) |
| Apr 1, 2022 | 11.00% (0.10995) | 94.44th | v2 (v2022.01.01) |
| Feb 4, 2022 | 11.00% (0.10995) | 88.52th | v2 (v2022.01.01) |
No CWE recorded.
References (10)
- http://bugs.gentoo.org/show_bug.cgi?id=185713 x_refsource_CONFIRM
- http://ftp.digium.com/pub/asa/ASA-2007-015.pdf x_refsource_CONFIRMPatchVendor Advisory
- http://secunia.com/advisories/26099 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/29051 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-200802-11.xml vendor-advisoryx_refsource_GENTOO
- http://www.debian.org/security/2007/dsa-1358 vendor-advisoryx_refsource_DEBIAN
- http://www.novell.com/linux/security/advisories/2007_15_sr.html vendor-advisoryx_refsource_SUSE
- http://www.securityfocus.com/bid/24950 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1018407 vdb-entryx_refsource_SECTRACK
- http://www.vupen.com/english/advisories/2007/2563 vdb-entryx_refsource_VUPEN
| Link | Providers | Tags |
|---|---|---|
| http://bugs.gentoo.org/show_bug.cgi?id=185713 | x_refsource_CONFIRM | |
| http://ftp.digium.com/pub/asa/ASA-2007-015.pdf | x_refsource_CONFIRMPatchVendor Advisory | |
| http://secunia.com/advisories/26099 | third-party-advisoryx_refsource_SECUNIA | |
| http://secunia.com/advisories/29051 | third-party-advisoryx_refsource_SECUNIA | |
| http://security.gentoo.org/glsa/glsa-200802-11.xml | vendor-advisoryx_refsource_GENTOO | |
| http://www.debian.org/security/2007/dsa-1358 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.novell.com/linux/security/advisories/2007_15_sr.html | vendor-advisoryx_refsource_SUSE | |
| http://www.securityfocus.com/bid/24950 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1018407 | vdb-entryx_refsource_SECTRACK | |
| http://www.vupen.com/english/advisories/2007/2563 | vdb-entryx_refsource_VUPEN |
Change history (0)
No recorded changes yet.