GHSA-mwwm-v74q-mvh9HighCVSS 8.8
microtar through 0.1.0 contains a stack-based buffer overflow vulnerability in the raw_to_header(...
🔗 CVE IDs covered (1)
📋 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.
🔗 References (6)
- https://nvd.nist.gov/vuln/detail/CVE-2026-43623
- https://github.com/rxi/microtar/issues/28
- https://github.com/rxi/microtar/issues/29
- https://github.com/rxi/microtar/issues/30
- https://www.vulncheck.com/advisories/microtar-stack-based-buffer-overflow-via-raw-to-header
- https://github.com/advisories/GHSA-mwwm-v74q-mvh9