chan_sip.c in Asterisk Open Source 1.8.x before 1.8.8.2 and 10.x before 10.0.1, when the res_srtp module is used and media support is improperly configured, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted SDP message with a crypto attribute and a (1) video or (2) text media type, as demonstrated by CSipSimple
Published Jan 25, 2012
4.3
MEDIUMCVSS 2.0
EPSS 2.41%
Description
chan_sip.c in Asterisk Open Source 1.8.x before 1.8.8.2 and 10.x before 10.0.1, when the res_srtp module is used and media support is improperly configured, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted SDP message with a crypto attribute and a (1) video or (2) text media type, as demonstrated by CSipSimple.
Affected products
No data.
Configuration 1
- 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
- 1.8.2.1
- 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
- 1.8.5.0
- 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
- 1.8.7.2
- 1.8.8.0
- 1.8.8.0
- 1.8.8.0
- 1.8.8.0
- 1.8.8.0
- 1.8.8.0
- 1.8.8.1
Configuration 2
- 10.0.0
- 10.0.0
- 10.0.0
- 10.0.0
- 10.0.0
- 10.0.0
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: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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.41% (0.02406) | 83.47th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.50% (0.02497) | 82.56th | v5 (v2026.06.15) |
| Mar 19, 2025 | 1.06% (0.01057) | 75.28th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.77% (0.02773) | 85.09th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.81% (0.01814) | 88.66th | v3 (v2023.03.01) |
| May 24, 2024 | 0.83% (0.00826) | 81.92th | v3 (v2023.03.01) |
| May 10, 2024 | 0.79% (0.00792) | 81.45th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.66% (0.00660) | 79.34th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.57% (0.00571) | 77.36th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.48% (0.00480) | 75.12th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.81% (0.01814) | 86.28th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
No CWE recorded.
References (8)
- http://downloads.asterisk.org/pub/security/AST-2012-001-1.8.diff x_refsource_CONFIRMPatch
- http://downloads.asterisk.org/pub/security/AST-2012-001-10.diff x_refsource_CONFIRMPatch
- http://downloads.asterisk.org/pub/security/AST-2012-001.html x_refsource_CONFIRMVendor Advisory
- http://www.openwall.com/lists/oss-security/2012/01/20/16 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2012/01/20/18 mailing-listx_refsource_MLIST
- https://bugzilla.redhat.com/show_bug.cgi?id=783487 x_refsource_CONFIRM
- https://issues.asterisk.org/jira/browse/ASTERISK-19202 x_refsource_CONFIRM
- https://issues.asterisk.org/jira/secure/attachment/42202/issueA19202_crypto_if_uninited_text_or_video.patch x_refsource_CONFIRMExploit
| Link | Providers | Tags |
|---|---|---|
| http://downloads.asterisk.org/pub/security/AST-2012-001-1.8.diff | x_refsource_CONFIRMPatch | |
| http://downloads.asterisk.org/pub/security/AST-2012-001-10.diff | x_refsource_CONFIRMPatch | |
| http://downloads.asterisk.org/pub/security/AST-2012-001.html | x_refsource_CONFIRMVendor Advisory | |
| http://www.openwall.com/lists/oss-security/2012/01/20/16 | mailing-listx_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2012/01/20/18 | mailing-listx_refsource_MLIST | |
| https://bugzilla.redhat.com/show_bug.cgi?id=783487 | x_refsource_CONFIRM | |
| https://issues.asterisk.org/jira/browse/ASTERISK-19202 | x_refsource_CONFIRM | |
| https://issues.asterisk.org/jira/secure/attachment/42202/issueA19202_crypto_if_uninited_text_or_video.patch | x_refsource_CONFIRMExploit |
Change history (0)
No recorded changes yet.