CVE-2026-34743

Katalog CVE

CVSS 5.3 · Medium EPSS 0,57%

Kerentanan Heap-based Buffer Overflow pada tukaani xz. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzma_index_decoder() was used to decode an Index that contained no Records, the resulting lzma_index was left in a state where where a subsequent lzma_index_append() would allocate too little memory, and a buffer overflow would occur. This issue has been patched in version 5.8.3.

Rincian

Terbit di NVD

2 April 2026

Terakhir diubah

24 Juli 2026

Status NVD

Modified

CVSS 3.1

5.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-122: Heap-based Buffer Overflow

EPSS (30 hari)

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

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/tukaani-project/xz/security/advisories/GHSA-x872-m794-cxhv advisory vendor
• https://github.com/tukaani-project/xz/commit/c8c22869e780ff57c96b46939c3d79ff99395f87 patch
• http://www.openwall.com/lists/oss-security/2026/03/31/13 mailing list · patch · advisory pihak ketiga
• https://github.com/tukaani-project/xz/releases/tag/v5.8.3 product · release notes
• https://lists.debian.org/debian-lts-announce/2026/07/msg00034.html