CVE-2021-23177

Katalog CVE

CVSS 7.8 · High EPSS 0,39%

Kerentanan Improper Link Resolution Before File Access ('Link Following') pada libarchive, fedoraproject fedora +11 lainnya. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL of a file on the system and gain more privileges.

Rincian

Terbit di NVD

23 Agustus 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-59: Improper Link Resolution Before File Access ('Link Following')

EPSS (30 hari)

0,39% peluang dieksploitasi; lebih tinggi dari 30,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.redhat.com/show_bug.cgi?id=2024245 issue tracking · patch · advisory pihak ketiga
• https://github.com/libarchive/libarchive/commit/fba4f123cc456d2b2538f811bb831483bf336bad patch · advisory pihak ketiga
• https://github.com/libarchive/libarchive/issues/1565 issue tracking · patch · advisory pihak ketiga
• https://access.redhat.com/security/cve/CVE-2021-23177 advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html mailing list · advisory pihak ketiga