Out-of-bounds Read in Qemu
CVE-2018-18849
In Qemu 3.0.0, lsi_do_msgin in hw/scsi/lsi53c895a.c allows out-of-bounds access by triggering an invalid msg_len value.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (44.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Qemu — versions 3.0.0
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Fedoraproject Fedora — versions 29
- openSUSE Leap — versions 15.0, 42.3
Weakness classification (CWE)
References
- usn.ubuntu.com/3826-1/ (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2018-12/msg00028.html (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2018-12/msg00043.html (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2018-12/msg00004.html (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2018/11/01/1 (Patch, Mailing List, Third Party Advisory)
- lists.gnu.org/archive/html/qemu-devel/2018-10/msg06401.html (Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20190411-0006/ (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/05/msg00010.html (mailing-list)
- www.debian.org/security/2019/dsa-4454 (vendor-advisory)
Frequently asked questions
- What is CVE-2018-18849?
- CVE-2018-18849 is a medium-severity vulnerability in Qemu, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2019-03-21.
- How severe is CVE-2018-18849?
- Medium severity. CVSS v3 base score is 5.5 out of 10.