Race condition in the FastCopy optimization in the Array.Copy method in metadata/icall.c in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, allows remote attackers to trigger a buffer overflow and modify internal data structures, and cause a denial of service (plugin crash) or corrupt the internal state of the security manager, via a crafted media file in which a thread makes a change after a type check but before a copy action
Published Apr 13, 2011
5.8
MEDIUMCVSS 2.0
EPSS 2.16%
Description
Race condition in the FastCopy optimization in the Array.Copy method in metadata/icall.c in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, allows remote attackers to trigger a buffer overflow and modify internal data structures, and cause a denial of service (plugin crash) or corrupt the internal state of the security manager, via a crafted media file in which a thread makes a change after a type check but before a copy action.
Affected products
No data.
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: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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.16% (0.02164) | 81.57th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.16% (0.02164) | 79.80th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.36% (0.01363) | 78.86th | v4 (v2025.03.14) |
| Dec 12, 2024 | 8.00% (0.08004) | 94.55th | v3 (v2023.03.01) |
| Dec 2, 2023 | 8.00% (0.08004) | 93.60th | v3 (v2023.03.01) |
| Oct 12, 2023 | 7.28% (0.07282) | 93.28th | v3 (v2023.03.01) |
| Mar 7, 2023 | 6.71% (0.06708) | 92.70th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.17% (0.02172) | 80.77th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.17% (0.02172) | 78.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.17% (0.02172) | 57.73th | v2 (v2022.01.01) |
References (10)
- http://lists.opensuse.org/opensuse-updates/2011-04/msg00024.html mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/04/06/14 mailing-listx_refsource_MLISTPatch
- http://secunia.com/advisories/44002 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/44076 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.mono-project.com/Vulnerabilities x_refsource_CONFIRM
- http://www.securityfocus.com/bid/47208 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2011/0904 vdb-entryx_refsource_VUPENVendor Advisory
- https://bugzilla.novell.com/show_bug.cgi?id=667077 x_refsource_CONFIRMPatch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66625 vdb-entryx_refsource_XF
- https://github.com/mono/mono/commit/2f00e4bbb2137130845afb1b2a1e678552fc8e5c x_refsource_CONFIRMPatch
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-updates/2011-04/msg00024.html | mailing-listx_refsource_MLIST | |
| http://openwall.com/lists/oss-security/2011/04/06/14 | mailing-listx_refsource_MLISTPatch | |
| http://secunia.com/advisories/44002 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://secunia.com/advisories/44076 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.mono-project.com/Vulnerabilities | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/47208 | vdb-entryx_refsource_BID | |
| http://www.vupen.com/english/advisories/2011/0904 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://bugzilla.novell.com/show_bug.cgi?id=667077 | x_refsource_CONFIRMPatch | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/66625 | vdb-entryx_refsource_XF | |
| https://github.com/mono/mono/commit/2f00e4bbb2137130845afb1b2a1e678552fc8e5c | x_refsource_CONFIRMPatch |
Change history (0)
No recorded changes yet.