Vulnerability · Published Oct 2, 2020 · Assigned by mitre
CVE-2020-25741
Low 3.2
In plain English
A low-severity security flaw in the qemu package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)3.2Low
Exploit odds (30 days)0.5%top 60.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
fdctrl_write_data in hw/block/fdc.c in QEMU 5.0.0 has a NULL pointer dereference via a NULL block pointer for the current drive.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | qemu | 5.1.0-r1 | ALPINE-CVE-2020-25741 |
| Alpine:v3.21 | qemu | 5.1.0-r1 | ALPINE-CVE-2020-25741 |
| Alpine:v3.22 | qemu | 5.1.0-r1 | ALPINE-CVE-2020-25741 |
| Alpine:v3.23 | qemu | 5.1.0-r1 | ALPINE-CVE-2020-25741 |
| Alpine:v3.24 | qemu | 5.1.0-r1 | ALPINE-CVE-2020-25741 |
| Debian:12 | qemu | no fix listed | DEBIAN-CVE-2020-25741 |
| Debian:13 | qemu | no fix listed | DEBIAN-CVE-2020-25741 |
| Debian:14 | qemu | no fix listed | DEBIAN-CVE-2020-25741 |
| Ubuntu:22.04:LTS | qemu | no fix listed | UBUNTU-CVE-2020-25741 |
| Ubuntu:24.04:LTS | qemu | no fix listed | UBUNTU-CVE-2020-25741 |
| Ubuntu:25.10 | qemu | no fix listed | UBUNTU-CVE-2020-25741 |
| Ubuntu:26.04:LTS | qemu | no fix listed | UBUNTU-CVE-2020-25741 |
| Ubuntu:26.10 | qemu | no fix listed | UBUNTU-CVE-2020-25741 |
| Ubuntu:26.04:LTS | qemu-hwe | no fix listed | UBUNTU-CVE-2020-25741 |
| Ubuntu:26.10 | qemu-hwe | no fix listed | UBUNTU-CVE-2020-25741 |
Affected products (as reported)
References
- https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05295.html x_refsource_MISC
- https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Ffdc_nullptr1 x_refsource_MISC
- http://www.openwall.com/lists/oss-security/2020/09/29/1 x_refsource_CONFIRM
- https://security.netapp.com/advisory/ntap-20201009-0005/ x_refsource_CONFIRM