PT-2016-2028 · Apple+6 · Ios+9
Liu Yang
+1
·
Published
2016-05-20
·
Updated
2024-06-15
·
CVE-2016-1837
CVSS v2.0
7.5
High
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Name of the Vulnerable Software and Affected Versions
libxml2 versions prior to 2.9.4
Apple iOS versions prior to 9.3.2
OS X versions prior to 10.11.5
tvOS versions prior to 9.2.1
watchOS versions prior to 2.2.1
Description
The issue is caused by multiple use-after-free vulnerabilities in the
htmlParsePubidLiteral and htmlParseSystemiteral functions in libxml2. This allows remote attackers to cause a denial of service via a crafted XML document. Additionally, the vulnerability can be exploited to execute arbitrary code or cause a denial of service due to a buffer overflow, by using a specially formed XML document.Recommendations
For libxml2 versions prior to 2.9.4, update to version 2.9.4 or later.
For Apple iOS versions prior to 9.3.2, update to version 9.3.2 or later.
For OS X versions prior to 10.11.5, update to version 10.11.5 or later.
For tvOS versions prior to 9.2.1, update to version 9.2.1 or later.
For watchOS versions prior to 2.2.1, update to version 2.2.1 or later.
As a temporary workaround, consider restricting the use of libxml2 until a patch is available. Avoid using the
htmlParsePubidLiteral and htmlParseSystemiteral functions in the affected API endpoints until the issue is resolved.Exploit
Fix
DoS
Use After Free
Buffer Overflow
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Related Identifiers
Affected Products
Alt Linux
Centos
Os X
Red Hat
Suse
Ubuntu
Ios
Libxml2
Tvos
Watchos