CVE-2018-12617

28Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendepss 25%

from disclosure to weapon1 days

Published on NVDJun 21

1st PoC+1d

exploitation probability

25%top 2% of all CVEs

observed exploitation

nono source reports it

2 public exploit(s)

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

n/a · n/a

public PoCs found — 2

cve_referencewww.exploit-db.com/exploits/44925/unverified exploitdbwww.exploit-db.com/exploits/44925unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

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