PT-2022-7609 · Linux+3 · Linux Kernel+3

Jordy Zomer · Published 2022-02-01 · Updated 2025-01-06 · CVE-2022-48730

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to a potential Spectre v1 gadget in the dma-buf heaps of the Linux kernel. The nr variable, supplied by a user and used as an array index, could allow an attacker to leak kernel memory contents to userspace via speculative execution. This can be prevented by using array index nospec.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Side Channel Attack

Weakness Enumeration

CWE-402

CWE-203

Related Identifiers

BDU:2024-07399

CVE-2022-48730

OPENSUSE-SU-2024_2362-1

OPENSUSE-SU-2024_2372-1

OPENSUSE-SU-2024_2394-1

OPENSUSE-SU-2024_2947-1

SUSE-SU-2024:2362-1

SUSE-SU-2024:2372-1

SUSE-SU-2024:2384-1

SUSE-SU-2024:2394-1

SUSE-SU-2024:2894-1

SUSE-SU-2024:2902-1

SUSE-SU-2024:2929-1

SUSE-SU-2024:2939-1

SUSE-SU-2024:2947-1

Affected Products

Astra Linux

Linux Kernel

Red Os

Suse

References · 1274

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/vmwgfx_fd_priv_esc.rb · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48730.json · Exploit
• https://git.kernel.org/stable/c/24f8e12d965b24f8aea762589e0e9fe2025c005e · Patch
• https://cve.org/CVERecord?id=CVE-2022-48730 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:2384-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2929-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-48730 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-07399 · Security Note
• https://osv.dev/vulnerability/CVE-2022-48730 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2394-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2894-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2939-1 · Vendor Advisory
• https://git.kernel.org/stable/c/92c4cfaee6872038563c5b6f2e8e613f9d84d47d · Patch
• https://git.kernel.org/stable/c/cc8f7940d9c2d45f67b3d1a2f2b7a829ca561bed · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:2947-1 · Vendor Advisory