High severity7.5NVD Advisory· Published Jun 21, 2018· Updated Jun 17, 2026
CVE-2018-12617
CVE-2018-12617
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.
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Affected products
27- Range: =2.12.50
- osv-coords26 versionspkg:rpm/suse/kvm&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/kvm&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/kvm&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATApkg:rpm/suse/kvm&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/kvm&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/qemu&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/qemu&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4
< 1.4.2-53.23.2+ 25 more
- (no CPE)range: < 1.4.2-53.23.2
- (no CPE)range: < 1.4.2-53.23.2
- (no CPE)range: < 1.4.2-53.23.2
- (no CPE)range: < 1.4.2-60.15.2
- (no CPE)range: < 1.4.2-60.15.2
- (no CPE)range: < 2.6.2-41.43.3
- (no CPE)range: < 2.9.1-6.19.11
- (no CPE)range: < 2.11.2-9.9.1
- (no CPE)range: < 2.11.2-9.9.1
- (no CPE)range: < 2.3.1-33.12.1
- (no CPE)range: < 2.6.2-41.43.3
- (no CPE)range: < 2.6.2-41.43.3
- (no CPE)range: < 2.9.1-6.19.11
- (no CPE)range: < 2.0.2-48.43.3
- (no CPE)range: < 2.3.1-33.12.1
- (no CPE)range: < 2.6.2-41.43.3
- (no CPE)range: < 2.9.1-6.19.11
- (no CPE)range: < 2.6.2-41.43.3
- (no CPE)range: < 4.2.5_21-45.25.1
- (no CPE)range: < 4.2.5_21-45.25.1
- (no CPE)range: < 4.4.4_34-61.32.1
- (no CPE)range: < 4.5.5_24-22.52.3
- (no CPE)range: < 4.4.4_34-22.71.2
- (no CPE)range: < 4.4.4_34-61.32.1
- (no CPE)range: < 4.5.5_24-22.52.3
- (no CPE)range: < 4.4.4_34-61.32.1
Patches
Vulnerability mechanics
References
8- lists.gnu.org/archive/html/qemu-devel/2018-06/msg03385.htmlnvdMailing ListPatchThird Party Advisory
- gist.github.com/fakhrizulkifli/c7740d28efa07dafee66d4da5d857ef6nvdExploitThird Party Advisory
- www.exploit-db.com/exploits/44925/nvdExploitThird Party AdvisoryVDB Entry
- www.securityfocus.com/bid/104531nvdThird Party AdvisoryVDB Entry
- lists.debian.org/debian-lts-announce/2019/02/msg00041.htmlnvdMailing ListThird Party Advisory
- seclists.org/bugtraq/2019/May/76nvdMailing ListThird Party Advisory
- usn.ubuntu.com/3826-1/nvdThird Party Advisory
- www.debian.org/security/2019/dsa-4454nvdThird Party Advisory
News mentions
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