CVE-2018-12617

HIGH
7.5
CVSS Score
Published: June 21, 2018 at 06:00 PM UTC
Updated: June 17, 2026 at 01:38 AM UTC
3 products affected across 3 vendorsDebian LinuxUbuntu LinuxQEMU

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Severity
HIGH7.5
Exploit prediction
EPSS 25%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (8)

VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/104531
Mailing Listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00041.html
x_refsource_MISCMailing ListPatchThird Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg03385.html
Mailing Listx_refsource_BUGTRAQThird Party Advisory
https://seclists.org/bugtraq/2019/May/76
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/3826-1/
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
https://www.debian.org/security/2019/dsa-4454
Exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/44925/

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-190

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