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Critical severity9.0NVD Advisory· Published Aug 17, 2021· Updated Jun 17, 2026

CVE-2021-22156

CVE-2021-22156

Description

An integer overflow vulnerability in the calloc() function of the C runtime library of affected versions of BlackBerry® QNX Software Development Platform (SDP) version(s) 6.5.0SP1 and earlier, QNX OS for Medical 1.1 and earlier, and QNX OS for Safety 1.0.1 and earlier that could allow an attacker to potentially perform a denial of service or execute arbitrary code.

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Affected products

9
  • Blackberry/Qnx Software Development Platform5 versions
    cpe:2.3:a:blackberry:qnx_software_development_platform:*:*:*:*:*:*:*:*+ 4 more
    • cpe:2.3:a:blackberry:qnx_software_development_platform:*:*:*:*:*:*:*:*range: <6.5.0
    • cpe:2.3:a:blackberry:qnx_software_development_platform:6.5.0:-:*:*:*:*:*:*
    • cpe:2.3:a:blackberry:qnx_software_development_platform:6.5.0:sp1:*:*:*:*:*:*
    • (no CPE)range: <=6.5.0SP1
    • (no CPE)range: QNX SDP 6.5.0 SP1 and earlier
  • Blackberry/Qnx OS For Medical2 versions
    cpe:2.3:o:blackberry:qnx_os_for_medical:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:blackberry:qnx_os_for_medical:*:*:*:*:*:*:*:*range: <=1.1.1
    • (no CPE)range: <=1.1
  • Blackberry/Qnx OS For Safety2 versions
    cpe:2.3:o:blackberry:qnx_os_for_safety:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:blackberry:qnx_os_for_safety:*:*:*:*:*:*:*:*range: <=1.0.2
    • (no CPE)range: <=1.0.1

Patches

Vulnerability mechanics

References

2

News mentions

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