5.5
CVE-2016-1922
- EPSS 0.43%
- Veröffentlicht 29.12.2016 22:59:00
- Zuletzt bearbeitet 06.05.2026 22:30:45
- Quelle secalert@redhat.com
- CVE-Watchlists
- Unerledigt
QEMU (aka Quick Emulator) built with the TPR optimization for 32-bit Windows guests support is vulnerable to a null pointer dereference flaw. It occurs while doing I/O port write operations via hmp interface. In that, 'current_cpu' remains null, which leads to the null pointer dereference. A user or process could use this flaw to crash the QEMU instance, resulting in DoS issue.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.43% | 0.344 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 5.5 | 1.8 | 3.6 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
|
| nvd@nist.gov | 2.1 | 3.9 | 2.9 |
AV:L/AC:L/Au:N/C:N/I:N/A:P
|
CWE-476 NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
http://www.debian.org/security/2016/dsa-3469
http://www.debian.org/security/2016/dsa-3470
http://www.debian.org/security/2016/dsa-3471
https://security.gentoo.org/glsa/201604-01
http://www.openwall.com/lists/oss-security/2016/01/16/1
http://www.openwall.com/lists/oss-security/2016/01/16/6
http://www.securityfocus.com/bid/81058
https://bugzilla.redhat.com/show_bug.cgi?id=1283934
https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg02812.html