CVE-2020-10730

Advisory lineage Upstream: 0 Downstream: 20
Modified
Published: 07 Jul 2020, 13:38
Last modified:04 Aug 2024, 11:14

Vulnerability Summary

Overall Risk (default)
medium
27/100
CVSS Score
6.5 MEDIUM
v3.1 (nvd)
EPSS Score
3.79% LOW
4% probability +2.82%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

07 Jul 2020, 13:38
Published
Vulnerability first disclosed
04 Aug 2024, 11:14
Last Modified
Vulnerability information updated

Description

A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4.10.17, before 4.11.11 and before 4.12.4. Although some versions of Samba shipped with Red Hat Enterprise Linux do not support Samba in AD mode, the affected code is shipped with the libldb package. This flaw allows an authenticated user to possibly trigger a use-after-free or NULL pointer dereference. The highest threat from this vulnerability is to system availability.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 4AV:N/AC:L/Au:S/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 3.79%• Percentile: 88%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • debian•debian_linux

    9.0 | 10.0

  • fedoraproject•fedora

    31

  • opensuse•leap

    15.1 | 15.2

  • redhat•storage

    3.0

  • samba•samba

    ≥ 4.5.0, < 4.10.17 | ≥ 4.11.0, < 4.11.11 | ≥ 4.12.0, < 4.12.4

References (10)