Pidgin Security Advisory
| Title | purple_base64_decode() remote crashes |
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| Date | 2010-10-20 |
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| CVE Name | CVE-2010-3711 |
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| Discovered By | Daniel Atallah |
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| Summary | Multiple remotely-triggered denials of service |
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| Description | It has been discovered that eight denial of service conditions exist in libpurple all due to insufficient validation of the return value from purple_base64_decode(). Invalid or malformed data received in place of a valid base64-encoded value in portions of the Yahoo!, MSN, MySpaceIM, and XMPP protocol plugins and the NTLM authentication support trigger a crash. These vulnerabilities can be leveraged by a remote user for denial of service. |
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| Fixed in Revision | 1a7e2da2ab01 |
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| Fixed in Version | 2.7.4 |
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| Fix | Check the return value from purple_base64_decode() before trying to use it. |
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