CVEvulnerability
CVE-2018-12617
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2018-06-21
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-190
Description
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 configurations
• qemu qemu (<= 2.12.50)
• canonical ubuntu linux 14.04
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.04
• canonical ubuntu linux 18.10
• debian debian linux 8.0
• debian debian linux 9.0
Related
Weakness · CWE (1)
- CWE-190 Integer Overflow or Wraparound weakness
References
- http://www.securityfocus.com/bid/104531 Third Party Advisory, VDB Entry
- https://gist.github.com/fakhrizulkifli/c7740d28efa07dafee66d4da5d857ef6 Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00041.html Mailing List, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg03385.html Mailing List, Patch, Third Party Advisory
- https://seclists.org/bugtraq/2019/May/76 Mailing List, Third Party Advisory
- https://usn.ubuntu.com/3826-1/ Third Party Advisory
- https://www.debian.org/security/2019/dsa-4454 Third Party Advisory
- https://www.exploit-db.com/exploits/44925/ Exploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/104531 Third Party Advisory, VDB Entry
- https://gist.github.com/fakhrizulkifli/c7740d28efa07dafee66d4da5d857ef6 Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00041.html Mailing List, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg03385.html Mailing List, Patch, Third Party Advisory
- https://seclists.org/bugtraq/2019/May/76 Mailing List, Third Party Advisory
- https://usn.ubuntu.com/3826-1/ Third Party Advisory
- https://www.debian.org/security/2019/dsa-4454 Third Party Advisory
- https://www.exploit-db.com/exploits/44925/ Exploit, Third Party Advisory, VDB Entry