PT-2025-18847 · Linux+3 · Linux Kernel+3

Published 2023-03-30 · Updated 2026-01-28 · CVE-2023-53083

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description A vulnerability in the Linux kernel has been identified, related to the nfsd splice actor function. The issue arises when the splice read calls nfsd splice actor to put pages containing file data into the svc rqst->rq pages array. If a partial page is received at the end of the splice result, it can be added to the array multiple times, potentially corrupting the reply and overrunning the array. This can lead to corruption of the trailing fields, including the rq respages and rq next page pointers.

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

Exploit

Improper Access Control

Information Disclosure

Incorrect Privilege Assignment

Weakness Enumeration

CWE-284

CWE-200

CWE-266

Related Identifiers

ALSA-2025_16880

BDU:2026-01565

CVE-2023-53083

RHSA-2023:2458

RHSA-2023_2458

Affected Products

Astra Linux

Linux Kernel

Red Hat

Red Os

References · 25

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53083.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53083 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-53083 · Vendor Advisory
• https://git.kernel.org/stable/c/12eca509234acb6b666802edf77408bb70d7bfca · Patch
• https://security-tracker.debian.org/tracker/CVE-2023-53083 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53083 · Vendor Advisory
• https://git.kernel.org/stable/c/8235cd619db6e67f1d7d26c55f1f3e4e575c947d · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-53083 · Security Note
• https://git.kernel.org/stable/c/0101067f376eb7b9afd00279270f25d5111a091d · Patch
• https://bdu.fstec.ru/vul/2026-01565 · Security Note
• https://git.kernel.org/stable/c/51ddb84baff6f09ad62b5999ece3ec172e4e3568 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53083 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53083 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53083 · Security Note
• https://git.kernel.org/stable/c/27c934dd8832dd40fd34776f916dc201e18b319b · Patch