Out-of-bounds Read Affecting samba-dc package, versions <0:4.10.16-5.el7


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.6% (80th percentile)

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  • Snyk IDSNYK-RHEL7-SAMBADC-1528734
  • published26 Jul 2021
  • disclosed21 Jan 2020

Introduced: 21 Jan 2020

CVE-2019-14907  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade RHEL:7 samba-dc to version 0:4.10.16-5.el7 or higher.
This issue was patched in RHSA-2020:3981.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba-dc package and not the samba-dc package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

All samba versions 4.9.x before 4.9.18, 4.10.x before 4.10.12 and 4.11.x before 4.11.5 have an issue where if it is set with "log level = 3" (or above) then the string obtained from the client, after a failed character conversion, is printed. Such strings can be provided during the NTLMSSP authentication exchange. In the Samba AD DC in particular, this may cause a long-lived process(such as the RPC server) to terminate. (In the file server case, the most likely target, smbd, operates as process-per-client and so a crash there is harmless).

CVSS Scores

version 3.1