Integer overflow in the emulated_apdu_from_guest function in usb/dev-smartcard-reader.c in Quick Emulator (Qemu), when built with the CCID Card device emulator support, allows local users to cause a denial of service (application crash) via a large Application Protocol Data Units (APDU) unit.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00048.html | third party advisory vendor advisory |
| http://www.openwall.com/lists/oss-security/2017/02/07/3 | patch mailing list third party advisory |
| https://access.redhat.com/errata/RHSA-2017:2392 | third party advisory vendor advisory |
| https://security.gentoo.org/glsa/201702-28 | patch vendor advisory third party advisory vdb entry |
| http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00045.html | third party advisory vendor advisory |
| http://www.securityfocus.com/bid/96112 | third party advisory vdb entry |
| http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=c7dfbf322595ded4e70b626bf83158a9f3807c6a | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1419699 | patch issue tracking |
| https://access.redhat.com/errata/RHSA-2017:1856 | third party advisory vendor advisory |