Unrated severityNVD Advisory· Published Aug 17, 2021· Updated Aug 22, 2025
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
4- Range: <=1.1
- Range: <=1.0.1
<=6.5.0SP1+ 1 more
- (no CPE)range: <=6.5.0SP1
- (no CPE)range: QNX SDP 6.5.0 SP1 and earlier
Patches
Vulnerability mechanics
References
2- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-qnx-TOxjVPdLmitrevendor-advisoryx_refsource_CISCO
- support.blackberry.com/kb/articleDetailmitrex_refsource_MISC
News mentions
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