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High severity7.5NVD Advisory· Published Jun 28, 2022· Updated Jun 17, 2026

CVE-2021-41689

CVE-2021-41689

Description

DCMTK through 3.6.6 does not handle string copy properly. Sending specific requests to the dcmqrdb program, it would query its database and copy the result even if the result is null, which can incur a head-based overflow. An attacker can use it to launch a DoS attack.

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Affected products

3
  • Dcmtk/Dcmtk3 versions
    cpe:2.3:a:offis:dcmtk:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:offis:dcmtk:*:*:*:*:*:*:*:*range: <=3.6.6
    • (no CPE)
    • (no CPE)range: <=3.6.6

Patches

Vulnerability mechanics

References

3

News mentions

0

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