CVE-2019-19344

Advisory lineage Upstream: 0 Downstream: 10
Modified
Published: 21 Jan 2020, 00:00
Last modified:05 Aug 2024, 02:16

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.5 MEDIUM
v3.1 (cve.org)
EPSS Score
2.19% LOW
2% probability -0.11%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

21 Jan 2020, 00:00
Published
Vulnerability first disclosed
05 Aug 2024, 02:16
Last Modified
Vulnerability information updated

Description

There is a use-after-free issue in all samba 4.9.x versions before 4.9.18, all samba 4.10.x versions before 4.10.12 and all samba 4.11.x versions before 4.11.5, essentially due to a call to realloc() while other local variables still point at the original buffer.

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: 2.19%• Percentile: 85%

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • canonical•ubuntu_linux

    16.04 | 18.04 | 19.04 | 19.10

  • opensuse•leap

    15.1

  • red hat•samba

    all samba 4.11.x versions before 4.11.5 | all samba 4.10.x versions before 4.10.12 | all samba 4.9.x versions before 4.9.18

  • samba•samba

    ≥ 4.9.0, < 4.9.18 | ≥ 4.10.0, < 4.10.12 | ≥ 4.11.0, < 4.11.5

  • synology•directory_server

    na

  • synology•diskstation_manager

    6.2

  • synology•router_manager

    1.2

  • synology•skynas

    na

References (10)