CVE-2011-0989

Severity: medium (CVSS 5.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-04-13 · updated 2026-06-16
Weakness: CWE-264

Description

The RuntimeHelpers.InitializeArray method in metadata/icall.c in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, does not properly restrict data types, which allows remote attackers to modify internal read-only data structures, and cause a denial of service (plugin crash) or corrupt the internal state of the security manager, via a crafted media file, as demonstrated by modifying a C# struct.

Affected products

mono: all versions
Novell Moonlight: 2.0, 2.3.0, 2.4, 2.31, 3.0, 3.99

References

http://lists.opensuse.org/opensuse-updates/2011-04/msg00024.html
http://openwall.com/lists/oss-security/2011/04/06/14
http://secunia.com/advisories/44002
http://secunia.com/advisories/44076
http://www.mono-project.com/Vulnerabilities
http://www.securityfocus.com/bid/47208
http://www.vupen.com/english/advisories/2011/0904
https://bugzilla.novell.com/show_bug.cgi?id=667077
https://exchange.xforce.ibmcloud.com/vulnerabilities/66624
https://github.com/mono/mono/commit/035c8587c0d8d307e45f1b7171a0d337bb451f1e
http://lists.opensuse.org/opensuse-updates/2011-04/msg00024.html
http://openwall.com/lists/oss-security/2011/04/06/14

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