Integer overflow in Qemu
CVE-2014-0147
Qemu before 1.6.2 block diver for the various disk image formats used by Bochs and for the QCOW version 2 format, are vulnerable to a possible crash caused by signed data types or a logic error while creating QCOW2 snapshots, which leads to incorrectly calling update_refcount() routine.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (23.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Qemu
- Fedoraproject Fedora — versions 20
- Red Hat Enterprise Linux Desktop — versions 6.0
- Red Hat Enterprise Linux Eus — versions 6.5
- Red Hat Enterprise Linux OpenStack Platform — versions 5
- Red Hat Enterprise Linux Server — versions 6.0
- Red Hat Enterprise Linux Server Aus — versions 6.5
- Red Hat Enterprise Linux Server Tus — versions 6.5
- Red Hat Enterprise Linux Workstation — versions 6.0
- Red Hat Virtualization — versions 3.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- git.qemu.org/
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- rhn.redhat.com/errata/RHSA-2014-0420.html (Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2014-0421.html (Third Party Advisory)
- www.openwall.com/lists/oss-security/2014/03/26/8 (Patch, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2014-0147?
- CVE-2014-0147 is a medium-severity vulnerability in Qemu, classified under Integer Overflow or Wraparound. CVSS score: 6.2/10. Published 2022-09-29.
- How severe is CVE-2014-0147?
- Medium severity. CVSS v3 base score is 6.2 out of 10.
- Is CVE-2014-0147 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.