Directory traversal vulnerability in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to access host files outside the export path via a .. (dot dot) in an unspecified string.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
| Link | Tags |
|---|---|
| https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg03917.html | third party advisory mailing list |
| http://www.openwall.com/lists/oss-security/2016/08/30/3 | third party advisory mailing list |
| http://www.securityfocus.com/bid/92680 | vdb entry third party advisory |
| https://security.gentoo.org/glsa/201609-01 | third party advisory vendor advisory |
| http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=56f101ecce0eafd09e2daf1c4eeb1377d6959261 | |
| https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html | third party advisory mailing list |
| http://www.openwall.com/lists/oss-security/2016/08/30/1 | third party advisory mailing list |
| https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg04231.html | third party advisory mailing list |