CVE-2023-1295— Privilege escalation with IO_RING_OP_CLOSE in the Linux Kernel
Possible ATT&CK Techniques 1AI
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I. Basic Information for CVE-2023-1295
Vulnerability Information
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Vulnerability Title
Privilege escalation with IO_RING_OP_CLOSE in the Linux Kernel
Source: CVE Program / CVE List V5
Vulnerability Description
A time-of-check to time-of-use issue exists in io_uring subsystem's IORING_OP_CLOSE operation in the Linux kernel's versions 5.6 - 5.11 (inclusive), which allows a local user to elevate their privileges to root. Introduced in b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959eb, patched in 9eac1904d3364254d622bf2c771c4f85cd435fc2, backported to stable in 788d0824269bef539fe31a785b1517882eafed93.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 5.6版本至5.11版本存在安全漏洞。攻击者利用该漏洞将权限升级为root权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Linux | Linux Kernel | 5.6 ~ 5.11 | - |
II. Public POCs for CVE-2023-1295
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2023-1295 (2)
Vendor Advisories for CVE-2023-1295 (1)
Security Blog Posts for CVE-2023-1295 (1)
Other References for CVE-2023-1295 (1)
Same Patch Batch · Linux · 2023-06-28 · 4 CVEs total
| CVE-2023-3390 | 7.8 HIGH | Use-after-free in Linux kernel's netfilter subsystem |
| CVE-2023-3389 | 7.8 HIGH | Use after free in io_uring in the Linux Kernel |
| CVE-2023-3090 | 7.8 HIGH | Out-of-bounds write in Linux kernel's ipvlan network driver |
IV. Related Vulnerabilities
Same product: Linux Kernel
- CVE-2024-24864
Race condition vulnerability in Linux kernel media/dvb-core - CVE-2024-24857
Race condition vulnerability in Linux kernel bluetooth in co - CVE-2024-24858
Race condition vulnerability in Linux kernel net/bluetooth i - CVE-2024-24859
Race condition vulnerability in Linux kernel bluetooth sniff - CVE-2024-24860
Race condition vulnerability in Linux kernel bluetooth drive
Same vendor: Linux
- CVE-2026-74583
net/sched: cls_route: fix fastmap use-after-free on filter - CVE-2026-74581
net: ipv6: clear suppressed fib6 rule result - CVE-2026-74582
packet: use consistent hard_header_len in non-ring send path - CVE-2026-74580
vhost: reset the vring metadata cache on vring reconfigurati - CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off
Same weakness: CWE-367
V. Comments for CVE-2023-1295
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