CVE-2020-14310

Katalog CVE

CVSS 6.0 · Medium EPSS 0,48%

Kerentanan Heap-based Buffer Overflow pada gnu grub2, redhat enterprise linux +5 lainnya. Skor CVSS 3.1 6.0 (Medium) menurut NVD.

Deskripsi (NVD)

There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow.

Rincian

Terbit di NVD

31 Juli 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-122: Heap-based Buffer Overflow
CWE-190: Integer Overflow or Wraparound

EPSS (30 hari)

0,48% peluang dieksploitasi; lebih tinggi dari 39,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14310 issue tracking · advisory vendor
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html mailing list · advisory pihak ketiga
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html mailing list · advisory pihak ketiga
• https://security.gentoo.org/glsa/202104-05 advisory pihak ketiga
• https://usn.ubuntu.com/4432-1/ advisory pihak ketiga