MEDIUM
Stack-based buffer overflow in the ast_uri_encode function in main/utils.c in Asterisk Open Source before 1.4.38.1, 1.4.39.1, 1.6.1.21, 1.6.2.15.1, 1.6.2.16.1, 1.8.1.2, 1.8.2.; and Business Edition before C.3.6.2; when running in pedantic mode allows remote authenticated users to execute arbitrary code via crafted caller ID data in vectors involving the (1) SIP channel driver, (2) URIENCODE dialplan function, or (3) AGI dialplan function
Published Jan 20, 2011
6.0
MEDIUMCVSS 2.0
EPSS 4.21%
Description
Stack-based buffer overflow in the ast_uri_encode function in main/utils.c in Asterisk Open Source before 1.4.38.1, 1.4.39.1, 1.6.1.21, 1.6.2.15.1, 1.6.2.16.1, 1.8.1.2, 1.8.2.; and Business Edition before C.3.6.2; when running in pedantic mode allows remote authenticated users to execute arbitrary code via crafted caller ID data in vectors involving the (1) SIP channel driver, (2) URIENCODE dialplan function, or (3) AGI dialplan function.
Affected products
No data.
Configuration 1
OR
- < c.3.6.2
- ≥ 1.2.0 · ≤ 1.2.40
- ≥ 1.4.0 · < 1.4.38.1
- ≥ 1.4.39 · < 1.4.39.1
- ≥ 1.6.1 · < 1.6.1.21
- ≥ 1.6.2 · < 1.6.2.15.1
- ≥ 1.6.2.16 · < 1.6.2.16.1
- ≥ 1.8.0 · < 1.8.1.2
- ≥ 1.8.2 · < 1.8.2.2
- 1.5
Configuration 2
OR
- 13
- 14
Configuration 3
- 6.0
Configuration 4
AND
- 1.2.0
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.
6.0 MEDIUM NVD
AV:N/AC:M/Au:S/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication Single
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
4.21% 0.04206
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.04206
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 | 4.21% (0.04206) | 90.66th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.21% (0.04206) | 89.64th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.47% (0.00472) | 61.78th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.83% (0.02835) | 76.98th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.47% (0.00472) | 62.60th | v4 (v2025.03.14) |
| Jan 22, 2025 | 19.50% (0.19495) | 96.32th | v3 (v2023.03.01) |
| Dec 17, 2024 | 16.93% (0.16926) | 96.03th | v3 (v2023.03.01) |
| Dec 12, 2024 | 3.81% (0.03806) | 92.22th | v3 (v2023.03.01) |
| Sep 10, 2023 | 3.24% (0.03238) | 90.01th | v3 (v2023.03.01) |
| Jul 21, 2023 | 3.07% (0.03067) | 89.67th | v3 (v2023.03.01) |
| Apr 4, 2023 | 2.69% (0.02690) | 88.84th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.60% (0.02602) | 88.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 9.09% (0.09085) | 94.15th | v2 (v2022.01.01) |
| Apr 1, 2022 | 9.09% (0.09085) | 93.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 9.09% (0.09085) | 86.88th | v2 (v2022.01.01) |
Weaknesses (1)
References (15)
- http://downloads.asterisk.org/pub/security/AST-2011-001-1.6.2.diff x_refsource_MISCPatchVendor Advisory
- http://downloads.asterisk.org/pub/security/AST-2011-001.html x_refsource_CONFIRMVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053689.html vendor-advisoryx_refsource_FEDORAThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053713.html vendor-advisoryx_refsource_FEDORAThird Party Advisory
- http://osvdb.org/70518 vdb-entryx_refsource_OSVDBBroken Link
- http://secunia.com/advisories/42935 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/43119 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/43373 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://www.debian.org/security/2011/dsa-2171 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.securityfocus.com/archive/1/515781/100/0/threaded mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/45839 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.vupen.com/english/advisories/2011/0159 vdb-entryx_refsource_VUPENPermissions Required
- http://www.vupen.com/english/advisories/2011/0281 vdb-entryx_refsource_VUPENPermissions Required
- http://www.vupen.com/english/advisories/2011/0449 vdb-entryx_refsource_VUPENPermissions Required
- https://exchange.xforce.ibmcloud.com/vulnerabilities/64831 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://downloads.asterisk.org/pub/security/AST-2011-001-1.6.2.diff | x_refsource_MISCPatchVendor Advisory | |
| http://downloads.asterisk.org/pub/security/AST-2011-001.html | x_refsource_CONFIRMVendor Advisory | |
| http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053689.html | vendor-advisoryx_refsource_FEDORAThird Party Advisory | |
| http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053713.html | vendor-advisoryx_refsource_FEDORAThird Party Advisory | |
| http://osvdb.org/70518 | vdb-entryx_refsource_OSVDBBroken Link | |
| http://secunia.com/advisories/42935 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/43119 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/43373 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://www.debian.org/security/2011/dsa-2171 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| http://www.securityfocus.com/archive/1/515781/100/0/threaded | mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry | |
| http://www.securityfocus.com/bid/45839 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.vupen.com/english/advisories/2011/0159 | vdb-entryx_refsource_VUPENPermissions Required | |
| http://www.vupen.com/english/advisories/2011/0281 | vdb-entryx_refsource_VUPENPermissions Required | |
| http://www.vupen.com/english/advisories/2011/0449 | vdb-entryx_refsource_VUPENPermissions Required | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/64831 | vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 20, 2011
Updated Aug 6, 2024
Reserved Jan 19, 2011
Link CVE-2011-0495
CISA Vulnrichment
Updated n/a