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6.5

When using a sync_repl client in 389-ds-base, an authenticated attacker can cause a NULL pointer dereference using a specially crafted query, causing a crash.

CVE-2021-3514 · published 5 years ago
Summary

When using a sync_repl client in 389-ds-base, an authenticated attacker can cause a NULL pointer dereference using a specially crafted query, causing a crash.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
redhat 389_directory_server All versions
cpe:2.3:o:redhat:389_directory_server:-:*:*:*:*:*:*:*
Original advisory text
When using a sync_repl client in 389-ds-base, an authenticated attacker can cause a NULL pointer dereference using a specially crafted query, causing a crash.
When using a sync_repl client in 389-ds-base, an authenticated attacker can cause a NULL pointer dereference using a specially crafted query, causing a crash.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
6.5 Medium
Exploitation
1% chance of attack within 30 days
Type
CWE-476NULL Pointer Dereference
Timeline
Published28 May 2021
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2021-3514 · NVD
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