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| <ul id="-path-navigation"><li><a href="/index.html">Home</a></li><li>CVE-2015-0224</li></ul> |
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| <h1 id="cve-2015-0224">CVE-2015-0224</h1> |
| |
| <h2 id="severity">Severity</h2> |
| |
| <p>Moderate</p> |
| |
| <h2 id="affected-components">Affected components</h2> |
| |
| <p>Qpid C++ broker</p> |
| |
| <h2 id="affected-versions">Affected versions</h2> |
| |
| <p>0.30 and earlier</p> |
| |
| <h2 id="fixed-versions">Fixed versions</h2> |
| |
| <p>0.32 and later</p> |
| |
| <h2 id="description">Description</h2> |
| |
| <p>Qpidd can be crashed by unauthenticated user.</p> |
| |
| <p>In CVE-2015-0203 it was announced that certain unexpected protocol |
| sequences cause the broker process to crash due to insufficient |
| checking, but that authentication could be used to restrict the |
| exploitation of this vulnerability.</p> |
| |
| <p>It has now been discovered that in fact failing authentication does |
| not necessarily prevent exploitation of those reported |
| vulnerabilities.</p> |
| |
| <p>Further, it was stated that one of the specific vulnerabilities was |
| that the qpidd broker can be crashed by sending it a sequence-set |
| containing an invalid range, where the start of the range is after the |
| end. This was an incorrect analysis of the vulnerability, which is in |
| fact caused by a sequence-set containing a single range expressing the |
| maximum possible gap.</p> |
| |
| <h2 id="resolution">Resolution</h2> |
| |
| <p>A further patch is available that handles a range expressing the |
| maximum possible gap without assertion (QPID-6310). The fix will be |
| included in subsequent releases, but can be applied to 0.30 if |
| desired.</p> |
| |
| <h2 id="credit">Credit</h2> |
| |
| <p>This issue was discovered by G. Geshev from MWR Labs.</p> |
| |
| <h2 id="references">References</h2> |
| |
| <p><a href="https://issues.apache.org/jira/browse/QPID-6310">QPID-6310</a></p> |
| |
| |
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