CVE-2021-35939

Katalog CVE

CVSS 6.7 · Medium EPSS 0,50%

Kerentanan Improper Link Resolution Before File Access ('Link Following') pada rpm, redhat enterprise linux. Skor CVSS 3.1 6.7 (Medium) menurut NVD.

Deskripsi (NVD)

It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only implemented for the parent directory of the file to be created. A local unprivileged user who owns another ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Rincian

Terbit di NVD

26 Agustus 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

6.7 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/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)

0,50% peluang dieksploitasi; lebih tinggi dari 41,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://rpm.org/wiki/Releases/4.18.0 release notes · advisory vendor
• https://github.com/rpm-software-management/rpm/commit/96ec957e281220f8e137a2d5eb23b83a6377d556 patch · advisory pihak ketiga
• https://github.com/rpm-software-management/rpm/pull/1919 patch · advisory pihak ketiga
• https://access.redhat.com/security/cve/CVE-2021-35939 advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=1964129 exploit · issue tracking · advisory pihak ketiga
• https://security.gentoo.org/glsa/202210-22 advisory pihak ketiga