high7.5Public exploit code
CVE-2018-12617
qmp_guest_file_read in qga/commands-posix.c and qga/commands-win32.c in qemu-ga (aka QEMU Guest Agent) in QEMU 2.12.50 has an integer overflow causing a g_mall…
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- QEMU Guest Agent 2.12.50 - Denial of Service2018-06-22 · dos · linux
Impact
qmp_guest_file_read in qga/commands-posix.c and qga/commands-win32.c in qemu-ga (aka QEMU Guest Agent) in QEMU 2.12.50 has an integer overflow causing a g_malloc0() call to trigger a segmentation fault when trying to allocate a large memory chunk. The vulnerability can be exploited by sending a crafted QMP command (including guest-file-read with a large count value) to the agent via the listening socket.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Qemu | Qemu | through 2.12.50 |
| Canonical | Ubuntu Linux | Versions 14.04, 16.04, 18.04, 18.10 |
| Debian | Debian Linux | Versions 8.0, 9.0 |
Weakness classification
References
- NVD record
- CVE.org record
- http://www.securityfocus.com/bid/104531
- https://gist.github.com/fakhrizulkifli/c7740d28efa07dafee66d4da5d857ef6
- https://lists.debian.org/debian-lts-announce/2019/02/msg00041.html
- https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg03385.html
- https://seclists.org/bugtraq/2019/May/76
- https://usn.ubuntu.com/3826-1/
- https://www.debian.org/security/2019/dsa-4454
- https://www.exploit-db.com/exploits/44925/
- http://www.securityfocus.com/bid/104531
- https://gist.github.com/fakhrizulkifli/c7740d28efa07dafee66d4da5d857ef6
- https://lists.debian.org/debian-lts-announce/2019/02/msg00041.html
- https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg03385.html
- https://seclists.org/bugtraq/2019/May/76
- https://usn.ubuntu.com/3826-1/
- https://www.debian.org/security/2019/dsa-4454
- https://www.exploit-db.com/exploits/44925/