CVE-2026-43623

Katalog CVE

CVSS 8.8 · High EPSS 0,57%

Kerentanan Stack-based Buffer Overflow. Skor CVSS 3.1 8.8 (High) menurut vulncheck.com.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

1 Juni 2026

Terakhir diubah

22 Juli 2026

Status NVD

Deferred

CVSS 3.1

8.8 (High), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-121: Stack-based Buffer Overflow

EPSS (30 hari)

0,57% peluang dieksploitasi; lebih tinggi dari 45,8% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• 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