3.2

CVE-2020-25723: debian debian_linux Reachable Assertion

Modified
AliasesRHSA-2021:0771UBUNTU-CVE-2020-25723DEBIAN-CVE-2020-25723
Published 02-12-2020Last modified 04-08-2024

Vulnerability summary

CVE-2020-25723 is a low (CVSS 3.2) Reachable Assertion vulnerability in debian debian_linux. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 30.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 3.2, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
3.2/10
010
Low · v3.1 (NVD)
EPSS score
0.36%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 28 · Related 24

Timeline

  1. 02-12-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on the host, resulting in a denial of service.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

0.36%

Chance of exploitation in the next 30 days

Percentile

30%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.36% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat176 products
  • hivex< 0:1.3.15-7.module+el8.1.0+4066+0f1aadab
  • hivex-debuginfo< 0:1.3.15-7.module+el8.1.0+4066+0f1aadab
  • hivex-debugsource< 0:1.3.15-7.module+el8.1.0+4066+0f1aadab
  • hivex-devel< 0:1.3.15-7.module+el8.1.0+4066+0f1aadab
  • libguestfs< 1:1.38.4-15.module+el8.2.0+5297+222a20af
Debian2 products
Alpine1 product
  • qemu< 5.2.0-r0
Qemu1 product
Ubuntu1 product
  • qemu< 2.0.0+dfsg-2ubuntu1.47+esm6 | < 1:2.5+dfsg-5ubuntu10.48 | < 1:2.11+dfsg-1ubuntu7.34 | < 1:4.2-3ubuntu6.10

5 vendors · 181 products

References

15 links
Show all 15 references