CVE-2026-43623 | BDVDB-2026-337079 Detail

Description#

microtar through 0.1.0 contains a stack-based buffer overflow vulnerability in the raw_to_header() function in src/microtar.c that allows attackers to corrupt adjacent stack memory by supplying a crafted TAR archive with non-null-terminated name or linkname fields. The function uses strcpy() to copy 100-byte ustar format fields that lack null terminators, causing writes of up to 355 bytes into a 100-byte destination buffer when mtar_open(), mtar_find(), or mtar_read_header() process attacker-supplied TAR archives.

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History#

1. Version 12026-06-01Record published in the CVE List.
2. Version 22026-07-14Most recent update recorded in the CVE List.