A vulnerability classified as problematic was found in Qt 5.x. Affected by this vulnerability is an unknown part of the component qtsingleapp. The manipulation as part of a Named Pipe leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect availability. The summary by CVE is:

The named pipes in qtsingleapp in Qt 5.x, as used in qBittorrent and SugarSync, are configured for remote access and allow remote attackers to cause a denial of service (application crash) via an unspecified string.

The bug was discovered 10/03/2014. The weakness was published 10/04/2017 (Website). The advisory is shared at hackinparis.com. This vulnerability is known as CVE-2017-15011 since 10/03/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 1096 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Affected

• Qt 5.x
• qBittorrent
• SugarSync

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• Qt

Version

• 5.x

License

• open-source

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