CVE-2017-15118
A stack-based buffer overflow vulnerability was found in NBD server implementation in qemu before 2.11 allowing a client to request an export name of size up to 4096 bytes, which in fact should be limited to 256 bytes, causing an out-of-bounds stack write in the qemu process. If NBD server requires TLS, the attacker cannot trigger the buffer overflow without first successfully negotiating TLS.
| Software | From | Fixed in |
|---|---|---|
| qemu / qemu | - | 2.11 |
| redhat / enterprise_linux | 7.0 | 7.0.x |
| canonical / ubuntu_linux | 16.04 | 16.04.x |
| canonical / ubuntu_linux | 14.04 | 14.04.x |
| canonical / ubuntu_linux | 17.10 | 17.10.x |
- http://www.openwall.com/lists/oss-security/2017/11/28/8
- http://www.securityfocus.com/bid/101975
- https://access.redhat.com/errata/RHSA-2018:1104
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15118
- https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05045.html
- https://usn.ubuntu.com/3575-1/
- https://www.exploit-db.com/exploits/43194/
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