8.5

CVE-2020-25717: canonical ubuntu_linux Improper Input Validation

Modified
AliasesALPINE-CVE-2020-25717SUSE-RU-2021:4095-1SUSE-RU-2021:4117-1
Published 18-02-2022Last modified 04-08-2024

Vulnerability summary

CVE-2020-25717 is a high (CVSS 8.5) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 1.63% chance of exploitation in the next 30 days, higher than 76.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.1, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.5/10
010
High · v2.0 (NVD)
EPSS score
1.63%
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 24 · Related 15
DSA-5003-1MGASA-2021-0585OPENSUSE-SU-2021:1471-1OPENSUSE-SU-2021:3647-1OPENSUSE-SU-2021:3650-1OPENSUSE-SU-2021:3674-1

Timeline

  1. 18-02-2022
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

1.63%

Chance of exploitation in the next 30 days

Percentile

76%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.63% 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: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Suse43 products
  • samba&distro=HPE Helion OpenStack 8< 4.6.16+git.313.502515a5bfc-3.67.2
  • samba&distro=SUSE Enterprise Storage 6< 4.9.5+git.477.8163dd03413-3.61.1
  • samba&distro=SUSE Enterprise Storage 7< 4.11.14+git.313.d4e302805e1-4.32.1
  • samba&distro=SUSE Linux Enterprise High Availability Extension 12 SP3< 4.6.16+git.313.502515a5bfc-3.67.2
  • samba&distro=SUSE Linux Enterprise High Availability Extension 12 SP4< 4.6.16+git.313.502515a5bfc-3.67.2
Redhat23 products
Debian2 products
  • samba< 2:4.9.5+dfsg-5+deb10u2 | < 2:4.13.14+dfsg-1
  • debian_linuxEOL9.0 | 10.0
Alpine1 product
  • samba≥ 3.0.0, < 4.13.17-r0 | ≥ 3.0.0, < 4.14.12-r0 | ≥ 3.0.0, < 4.15.2-r0
Canonical1 product
Fedoraproject1 product
Opensuse1 product
  • samba&distro=openSUSE Leap 15.3< 4.13.13+git.531.903f5c0ccdc-3.17.1
Samba1 product
  • samba≥ 3.0.0, < 4.13.14 | ≥ 4.14.0, < 4.14.10 | ≥ 4.15.0, < 4.15.2
Ubuntu1 product
  • sambaAll versions (No fix recorded) | < 2:4.7.6+dfsg~ubuntu-0ubuntu2.26 | < 2:4.13.14+dfsg-0ubuntu0.20.04.1 | < 2:4.13.14+dfsg-0ubuntu1

9 vendors · 74 products

References

28 links
Show all 28 references