CVE-2021-3638

Katalog CVE

CVSS 6.5 · Medium EPSS 0,43%

Kerentanan Out-of-bounds Write pada qemu, fedoraproject fedora. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while handling MMIO write operations when the guest provides invalid values for the destination display parameters. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.

Rincian

Terbit di NVD

3 Maret 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

0,43% peluang dieksploitasi; lebih tinggi dari 35,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg01682.html exploit · mailing list · patch · advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=1979858 issue tracking · advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BU... mailing list · advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW... mailing list · advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20220407-0003/ advisory pihak ketiga
• https://ubuntu.com/security/CVE-2021-3638 advisory pihak ketiga