CVE-2011-0992
Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is...
CVE-2011-0992 is a medium vulnerability (CVSS 5.8) in Mono, published April 13, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.69%, the 85th percentile. Fixed in mono 3.2.8+dfsg-4ubuntu1.1.
Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, allows remote attackers to cause a denial of service (plugin crash) or obtain sensitive information via vectors related to member data in a resurrected MonoThread instance.
Exploit likelihood
What each source reports
NVD Score used
5.8
Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, allows remote attackers to cause a denial of service (plugin crash) or obtain sensitive information via vectors related to member data in a resurrected MonoThread instance.
- Record
CVE-2011-0992- CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:N/A:P - Weakness
- CWE-399
- Updated
- 2026-11-02
CVE List No score
Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, allows remote attackers to cause a denial of service (plugin crash) or obtain sensitive information via vectors related to member data in a resurrected MonoThread instance.
- Record
CVE-2011-0992- Updated
- 2026-11-02
EUVDEUVD-2011-1004 No score
Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, allows remote attackers to cause a denial of service (plugin crash) or obtain sensitive information via vectors related to member data in a resurrected MonoThread instance.
- Record
EUVD-2011-1004- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5v2g-vp3m-c3jg No score
Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is...
Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, allows remote attackers to cause a denial of service (plugin crash) or obtain sensitive information via vectors related to member data in a resurrected MonoThread instance.
- Record
GHSA-5v2g-vp3m-c3jg- Updated
- 2026-11-02
OSVUBUNTU-CVE-2011-0992 No score
Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, allows remote attackers to cause a denial of service (plugin crash) or obtain sensitive information via vectors related to member data in a resurrected MonoThread instance.
- Record
UBUNTU-CVE-2011-0992- Updated
- 2026-11-02
OSVUSN-2547-1 No score
mono vulnerabilities
It was discovered that the Mono TLS implementation was vulnerable to the SKIP-TLS vulnerability. A remote attacker could possibly use this issue to perform client impersonation attacks. (CVE-2015-2318)
It was discovered that the Mono TLS implementation was vulnerable to the FREAK vulnerability. A remote attacker or a machine-in-the-middle could possibly use this issue to force the use of insecure ciphersuites. (CVE-2015-2319)
It was discovered that the Mono TLS implementation still supported a fallback to SSLv2. This update removes the functionality as use of SSLv2 is known to be insecure. (CVE-2015-2320)
It was discovered that Mono incorrectly handled memory in certain circumstances. A remote attacker could possibly use this issue to cause Mono to crash, resulting in a denial of service, or to obtain sensitive information. This issue only applied to Ubuntu 12.04 LTS. (CVE-2011-0992)
It was discovered that Mono incorrectly handled hash collisions. A remote attacker could possibly use this issue to cause Mono to crash, resulting in a denial of service. This issue only applied to Ubuntu 12.04 LTS. (CVE-2012-3543)
- Record
USN-2547-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
monoUbuntu:14.04:LTS |
before 3.2.8+dfsg-4ubuntu1.1, plus listed versions 2.10.8.1-5ubuntu23.2.3+dfsg-53.2.3+dfsg-7ubuntu13.2.8+dfsg-4ubuntu1 |
3.2.8+dfsg-4ubuntu1.1 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | affected | |
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
exchange.xforce.ibmcloud.com/vulnerabilities/66627
bugzilla.novell.com/show_bug.cgi?id=678515
bugzilla.novell.com/show_bug.cgi?id=667077
securityfocus.com/bid/47208
openwall.com/lists/oss-security/2011/04/06/14
secunia.com/advisories/44002
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mono-project.com/Vulnerabilities
bugzilla.redhat.com/show_bug.cgi?id=694933
github.com/mono/mono/commit/722f9890f09aadfc37ae479e7d946d5fc5ef7b91
secunia.com/advisories/44076
lists.opensuse.org/opensuse-updates/2011-04/msg00024.html
vupen.com/english/advisories/2011/0904
nvd.nist.gov/vuln/detail/CVE-2011-0992
github.com/advisories/GHSA-5v2g-vp3m-c3jg
ubuntu.com/security/CVE-2011-0992
ubuntu.com/security/notices/USN-2547-1
cve.org/CVERecord?id=CVE-2011-0992
ubuntu.com/security/CVE-2012-3543
ubuntu.com/security/CVE-2015-2318
ubuntu.com/security/CVE-2015-2319
ubuntu.com/security/CVE-2015-2320