Qemu: qcow2: NULL dereference in qcow2_open() error path
Published Aug 10, 2017
5.5
MEDIUMCVSS 3.0
EPSS 0.41%
Description
The qcow2_open function in the (block/qcow2.c) in QEMU before 1.7.2 and 2.x before 2.0.0 allows local users to cause a denial of service (NULL pointer dereference) via a crafted image which causes an error, related to the initialization of the snapshot_offset and nb_snapshots fields.
Affected products
No data.
No data.
OpenStack 3 for RHEL 6
qemu-kvm-rhev-2:0.12.1.2-2.415.el6_5.8
Fixed · RHSA-2014:0435
OpenStack 4 for RHEL 6
qemu-kvm-rhev-2:0.12.1.2-2.415.el6_5.8
Fixed · RHSA-2014:0434
RHEV 3.X Hypervisor and Agents for RHEL-6
qemu-kvm-rhev-2:0.12.1.2-2.415.el6_5.8
Fixed · RHSA-2014:0421
RHEV 3.X Hypervisor and Agents for RHEL-6
rhev-hypervisor6-0:6.5-20140603.2.el6ev
Fixed · RHSA-2014:0674
Red Hat Enterprise Linux 6
qemu-kvm-2:0.12.1.2-2.415.el6_5.8
Fixed · RHSA-2014:0420
Red Hat Enterprise Linux 5
kvm
Will not fix
Red Hat Enterprise Linux 7
qemu-kvm
Not affected
Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)
qemu-kvm-rhev
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| OpenStack 3 for RHEL 6 | qemu-kvm-rhev-2:0.12.1.2-2.415.el6_5.8 | Fixed | RHSA-2014:0435 |
| OpenStack 4 for RHEL 6 | qemu-kvm-rhev-2:0.12.1.2-2.415.el6_5.8 | Fixed | RHSA-2014:0434 |
| RHEV 3.X Hypervisor and Agents for RHEL-6 | qemu-kvm-rhev-2:0.12.1.2-2.415.el6_5.8 | Fixed | RHSA-2014:0421 |
| RHEV 3.X Hypervisor and Agents for RHEL-6 | rhev-hypervisor6-0:6.5-20140603.2.el6ev | Fixed | RHSA-2014:0674 |
| Red Hat Enterprise Linux 6 | qemu-kvm-2:0.12.1.2-2.415.el6_5.8 | Fixed | RHSA-2014:0420 |
| Red Hat Enterprise Linux 5 | kvm | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | qemu-kvm | Not affected | n/a |
| Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse) | qemu-kvm-rhev | Affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
AV:L/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.41% (0.00406) | 32.42th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.41% (0.00406) | 32.06th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00059) | 15.63th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00083) | 37.07th | v3 (v2023.03.01) |
| Jun 24, 2024 | 0.08% (0.00083) | 35.55th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00083) | 33.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.11% (0.01108) | 54.62th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.54% (0.01537) | 73.85th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
References (9)
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=11b128f4062dd7f89b14abc8877ff20d41b28be9 x_refsource_CONFIRM
- http://rhn.redhat.com/errata/RHSA-2014-0420.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2014-0421.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.debian.org/security/2014/dsa-3044 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2014/03/26/8 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2014-0146 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1078232 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2014-0146
- https://www.cve.org/CVERecord?id=CVE-2014-0146
| Link | Providers | Tags |
|---|---|---|
| http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=11b128f4062dd7f89b14abc8877ff20d41b28be9 | x_refsource_CONFIRM | |
| http://rhn.redhat.com/errata/RHSA-2014-0420.html | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| http://rhn.redhat.com/errata/RHSA-2014-0421.html | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| http://www.debian.org/security/2014/dsa-3044 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.openwall.com/lists/oss-security/2014/03/26/8 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2014-0146 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1078232 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2014-0146 | ||
| https://www.cve.org/CVERecord?id=CVE-2014-0146 |
Change history (0)
No recorded changes yet.