Multiple stack-based and heap-based buffer overflows in the (1) decode_open_type and (2) udptl_rx_packet functions in main/udptl.c in Asterisk Open Source 1.4.x before 1.4.39.2, 1.6.1.x before 1.6.1.22, 1.6.2.x before 1.6.2.16.2, and 1.8 before 1.8.2.4; Business Edition C.x.x before C.3.6.3; AsteriskNOW 1.5; and s800i (Asterisk Appliance), when T.38 support is enabled, allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted UDPTL packet
Published Mar 15, 2011
6.8
MEDIUMCVSS 2.0
EPSS 3.52%
Description
Multiple stack-based and heap-based buffer overflows in the (1) decode_open_type and (2) udptl_rx_packet functions in main/udptl.c in Asterisk Open Source 1.4.x before 1.4.39.2, 1.6.1.x before 1.6.1.22, 1.6.2.x before 1.6.2.16.2, and 1.8 before 1.8.2.4; Business Edition C.x.x before C.3.6.3; AsteriskNOW 1.5; and s800i (Asterisk Appliance), when T.38 support is enabled, allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted UDPTL packet.
Affected products
No data.
Configuration 1
- 1.4.0
- 1.4.0
- 1.4.0
- 1.4.0
- 1.4.0
- 1.4.1
- 1.4.2
- 1.4.3
- 1.4.10
- 1.4.10.1
- 1.4.11
- 1.4.12
- 1.4.12.1
- 1.4.13
- 1.4.14
- 1.4.15
- 1.4.16
- 1.4.16.1
- 1.4.16.2
- 1.4.17
- 1.4.18
- 1.4.19
- 1.4.19
- 1.4.19
- 1.4.19
- 1.4.19
- 1.4.19.1
- 1.4.19.2
- 1.4.20
- 1.4.20
- 1.4.20
- 1.4.20
- 1.4.20.1
- 1.4.21
- 1.4.21
- 1.4.21
- 1.4.21.1
- 1.4.21.2
- 1.4.22
- 1.4.22
- 1.4.22
- 1.4.22
- 1.4.22
- 1.4.22
- 1.4.22.1
- 1.4.22.2
- 1.4.23
- 1.4.23
- 1.4.23
- 1.4.23
- 1.4.23
- 1.4.23.1
- 1.4.23.2
- 1.4.24
- 1.4.24
- 1.4.24.1
- 1.4.25
- 1.4.25
- 1.4.25.1
- 1.4.26
- 1.4.26
- 1.4.26
- 1.4.26
- 1.4.26
- 1.4.26
- 1.4.26
- 1.4.26.1
- 1.4.26.2
- 1.4.26.3
- 1.4.27
- 1.4.27
- 1.4.27
- 1.4.27
- 1.4.27
- 1.4.27
- 1.4.27.1
- 1.4.28
- 1.4.28
- 1.4.29
- 1.4.29
- 1.4.29.1
- 1.4.30
- 1.4.30
- 1.4.30
- 1.4.31
- 1.4.31
- 1.4.31
- 1.4.32
- 1.4.32
- 1.4.33
- 1.4.33
- 1.4.33
- 1.4.33.1
- 1.4.34
- 1.4.34
- 1.4.34
- 1.4.35
- 1.4.35
- 1.4.36
- 1.4.36
- 1.4.37
- 1.4.37
- 1.4.38
- 1.4.38
- 1.4.39
- 1.4.39
- 1.4.39.1
Configuration 2
- 1.6.2.0
- 1.6.2.0
- 1.6.2.0
- 1.6.2.0
- 1.6.2.0
- 1.6.2.0
- 1.6.2.0
- 1.6.2.0
- 1.6.2.1
- 1.6.2.1
- 1.6.2.2
- 1.6.2.3
- 1.6.2.4
- 1.6.2.5
- 1.6.2.6
- 1.6.2.6
- 1.6.2.6
- 1.6.2.15
- 1.6.2.16
- 1.6.2.16
- 1.6.2.16.1
Configuration 3
- 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
Configuration 4
- c.1.0
- c.1.0
- c.1.6
- c.1.6.1
- c.1.6.2
- c.1.8.0
- c.1.8.1
- c.2.3
- c.3.0
- c.3.1.0
- c.3.1.1
- c.3.2.2
- c.3.2.3
- c.3.3.2
- c.3.6.2
Configuration 5
- 1.5
- n/a
Configuration 6
- 1.6.1.0
- 1.6.1.0
- 1.6.1.0
- 1.6.1.0
- 1.6.1.0
- 1.6.1.1
- 1.6.1.2
- 1.6.1.3
- 1.6.1.4
- 1.6.1.5
- 1.6.1.5
- 1.6.1.6
- 1.6.1.7
- 1.6.1.7
- 1.6.1.8
- 1.6.1.9
- 1.6.1.10
- 1.6.1.10
- 1.6.1.10
- 1.6.1.10
- 1.6.1.11
- 1.6.1.12
- 1.6.1.12
- 1.6.1.13
- 1.6.1.13
- 1.6.1.14
- 1.6.1.15
- 1.6.1.16
- 1.6.1.17
- 1.6.1.18
- 1.6.1.18
- 1.6.1.18
- 1.6.1.19
- 1.6.1.19
- 1.6.1.19
- 1.6.1.19
- 1.6.1.20
- 1.6.1.20
- 1.6.1.20
- 1.6.1.21
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:M/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 | 3.52% (0.03525) | 88.85th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.52% (0.03525) | 87.69th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.83% (0.02835) | 84.94th | v4 (v2025.03.14) |
| Mar 29, 2025 | 8.65% (0.08651) | 87.19th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.06% (0.03065) | 85.82th | v4 (v2025.03.14) |
| Dec 17, 2024 | 90.14% (0.90136) | 99.06th | v3 (v2023.03.01) |
| Nov 3, 2023 | 93.07% (0.93068) | 98.77th | v3 (v2023.03.01) |
| Sep 13, 2023 | 92.55% (0.92552) | 98.63th | v3 (v2023.03.01) |
| Apr 3, 2023 | 92.07% (0.92067) | 98.38th | v3 (v2023.03.01) |
| Mar 7, 2023 | 93.09% (0.93090) | 98.45th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.54% (0.07544) | 92.83th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.54% (0.07544) | 92.13th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.54% (0.07544) | 81.06th | v2 (v2022.01.01) |
References (12)
- http://downloads.asterisk.org/pub/security/AST-2011-002.html x_refsource_CONFIRMVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055030.html vendor-advisoryx_refsource_FEDORAPatch
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055421.html vendor-advisoryx_refsource_FEDORAPatch
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055634.html vendor-advisoryx_refsource_FEDORAPatch
- http://secunia.com/advisories/43429 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/43702 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.debian.org/security/2011/dsa-2225 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2011/03/11/2 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2011/03/11/8 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/46474 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1025101 vdb-entryx_refsource_SECTRACK
- http://www.vupen.com/english/advisories/2011/0635 vdb-entryx_refsource_VUPENVendor Advisory
Change history (0)
No recorded changes yet.