6.5

CVE-2019-12436: canonical ubuntu_linux NULL Pointer Dereference

CVSS: 6.5v3.0MediumModified
AliasesALPINE-CVE-2019-12436UBUNTU-CVE-2019-12436
Published 19-06-2019Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2019-12436 is a medium (CVSS 6.5) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 2.79% chance of exploitation in the next 30 days, higher than 86.2% of scored vulnerabilities.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.0 (NVD)
EPSS score
2.79%
0%100%
Low · -0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
MGASA-2019-0286OPENSUSE-SU-2024:11365-1

Timeline

  1. 19-06-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Samba 4.10.x before 4.10.5 has a NULL pointer dereference, leading to an AD DC LDAP server Denial of Service. This is related to an attacker using the paged search control. The attacker must have directory read access in order to attempt an exploit.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.79%

Chance of exploitation in the next 30 days

Percentile

86%

Versus all other CVEs

30-day change

-0.05 pp

From 2.84% on 20-09-2026

20-09-202620-10-2026
EPSS score
2.79%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Alpine1 product
  • samba≥ 4.10.0, < 4.10.5-r0
Canonical1 product
Samba1 product
  • samba≥ 4.10.0, < 4.10.5
Ubuntu1 product
  • samba< 2:4.3.11+dfsg-0ubuntu0.16.04.21 | < 2:4.7.6+dfsg~ubuntu-0ubuntu2.11

4 vendors · 4 products

References

9 links