|Date: (C)2010-10-27 (M)2017-09-22|
|CVSS Score: 4.0||Access Vector: NETWORK|
|Exploitability Subscore: 8.0||Access Complexity: LOW|
|Impact Subscore: 2.9||Authentication: SINGLE_INSTANCE|
| ||Confidentiality: NONE|
| ||Integrity: NONE|
| ||Availability: PARTIAL|
libpurple in Pidgin before 2.7.4 does not properly validate the return value of the purple_base64_decode function, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a crafted message, related to the plugins for MSN, MySpaceIM, XMPP, and Yahoo! and the NTLM authentication support.