Within the function HandleFileArg the argument filepattern is under control of the user who passes it in from the command line. filepattern is passed directly to strlen to determine the ending location of the char* passed in by the user, no checks are done to see if the passed in char* is longer than the staticly sized buffer data is memcpy‘d into, but after the memcpy a null byte is written to what is assumed to be the end of the buffer to terminate the char*, but without length checks, this null write occurs at an arbitrary offset from the buffer. An attacker can provide malicious input to trigger this vulnerability.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: talos

Published: 2021-08-13T22:39:59

Updated: 2024-08-03T18:23:29.664Z

Reserved: 2021-01-04T00:00:00

Link: CVE-2021-21814

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-08-13T23:15:07.293

Modified: 2022-10-06T18:17:46.517

Link: CVE-2021-21814

cve-icon Redhat

No data.