CVE-2020-25085

Publication date 25 September 2020

Last updated 18 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.0 · Medium

Score breakdown

Description

QEMU 5.0.0 has a heap-based Buffer Overflow in flatview_read_continue in exec.c because hw/sd/sdhci.c mishandles a write operation in the SDHC_BLKSIZE case.

Read the notes from the security team

Status

Package Ubuntu Release Status
qemu-kvm 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.10 kinetic Not in release
22.04 LTS jammy Not in release
21.10 impish Not in release
21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
qemu 26.10 stonking
Fixed in 1:5.2+dfsg-2ubuntu1
26.04 LTS resolute
Fixed in 1:5.2+dfsg-2ubuntu1
25.10 questing
Fixed in 1:5.2+dfsg-2ubuntu1
25.04 plucky
Fixed in 1:5.2+dfsg-2ubuntu1
24.10 oracular
Fixed in 1:5.2+dfsg-2ubuntu1
24.04 LTS noble
Fixed in 1:5.2+dfsg-2ubuntu1
23.10 mantic
Fixed in 1:5.2+dfsg-2ubuntu1
23.04 lunar
Fixed in 1:5.2+dfsg-2ubuntu1
22.10 kinetic
Fixed in 1:5.2+dfsg-2ubuntu1
22.04 LTS jammy
Fixed in 1:5.2+dfsg-2ubuntu1
21.10 impish
Fixed in 1:5.2+dfsg-2ubuntu1
21.04 hirsute
Fixed in 1:5.2+dfsg-2ubuntu1
20.10 groovy
Fixed in 1:5.0-5ubuntu9.2
20.04 LTS focal
Fixed in 1:4.2-3ubuntu6.10
18.04 LTS bionic
Fixed in 1:2.11+dfsg-1ubuntu7.34
16.04 LTS xenial
Fixed in 1:2.5+dfsg-5ubuntu10.48
14.04 LTS trusty
Vulnerable

Notes

mdeslaur

same fix as CVE-2020-17380

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
qemu

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.0 · Medium

Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L

References

Related Ubuntu Security Notices (USN)

    • USN-4650-1
    • QEMU vulnerabilities
    • 30 November 2020

Other references

Access our resources on patching vulnerabilities