CVE-2018-12617

Summary

CVECVE-2018-12617
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-06-21 18:29:00 UTC
Updated2020-11-19 16:35:00 UTC
Descriptionqmp_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.

Risk And Classification

Problem Types: CWE-190

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 18.10 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 18.10 All All All
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Application Qemu Qemu All All All All

References

ReferenceSourceLinkTags
QEMU CVE-2018-12617 Multiple Local Denial of Service Vulnerabilities BID www.securityfocus.com Third Party Advisory, VDB Entry
[Qemu-devel] [PATCH] qga: check bytes count read by guest-file-read MISC lists.gnu.org Mailing List, Patch, Third Party Advisory
USN-3826-1: QEMU vulnerabilities | Ubuntu security notices UBUNTU usn.ubuntu.com Third Party Advisory
[SECURITY] [DLA 1694-1] qemu security update MLIST lists.debian.org Mailing List, Third Party Advisory
QEMU Guest Agent 2.12.50 - Denial of Service - Linux dos Exploit EXPLOIT-DB www.exploit-db.com Exploit, Third Party Advisory, VDB Entry
CVE-2018-12617 · GitHub MISC gist.github.com Exploit, Third Party Advisory
Debian -- Security Information -- DSA-4454-1 qemu DEBIAN www.debian.org Third Party Advisory
Bugtraq: [SECURITY] [DSA 4454-1] qemu security update BUGTRAQ seclists.org Mailing List, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 900063 CBL-Mariner Linux Security Update for qemu-kvm 4.2.0
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