CVE-2020-8835

Katalog CVE

CVSS 7.8 · High EPSS 6,0%

Kerentanan Out-of-bounds Read pada linux kernel, fedoraproject fedora +25 lainnya. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the introducing commit was backported to that branch. This vulnerability was fixed in 5.6.1, 5.5.14, and 5.4.29. (issue is aka ZDI-CAN-10780)

Rincian

Terbit di NVD

2 April 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-125: Out-of-bounds Read
CWE-787: Out-of-bounds Write

EPSS (30 hari)

6,0% peluang dieksploitasi; lebih tinggi dari 93,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f2d67fec0b43edce8c416101cdc52e7... patch · advisory vendor
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71... patch · advisory vendor
• https://www.openwall.com/lists/oss-security/2020/03/30/3 mailing list · patch · advisory pihak ketiga
• http://www.openwall.com/lists/oss-security/2021/07/20/1 exploit · mailing list · advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20200430-0004/ advisory pihak ketiga
• https://usn.ubuntu.com/4313-1/ advisory pihak ketiga
• https://usn.ubuntu.com/usn/usn-4313-1 advisory pihak ketiga
• https://www.thezdi.com/blog/2020/3/19/pwn2own-2020-day-one-results advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7OONYGMSYBEF...
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TF4PQZBEPNXDS...
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YXBWSHZ6DJIZV...
• https://lore.kernel.org/bpf/20200330160324.15259-1-daniel%40iogearbox.net/T/