DEBIAN-CVE-2023-53524
- Source
- https://security-tracker.debian.org/tracker/CVE-2023-53524
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53524.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2023-53524
- Upstream
- Published
- 2025-10-01T12:15:56.880Z
- Modified
- 2026-01-27T11:16:09.044291Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: pcie: Fix integer overflow in iwlwritetouserbuf An integer overflow occurs in the iwlwritetouserbuf() function, which is called by the iwldbgfsmonitordataread() function. static bool iwlwritetouserbuf(char _user *userbuf, ssizet count, void *buf, ssizet *size, ssizet *bytescopied) { int bufsizeleft = count - *bytescopied; bufsizeleft = bufsizeleft - (bufsizeleft % sizeof(u32)); if (*size > bufsizeleft) *size = bufsizeleft; If the user passes a SIZEMAX value to the "ssizet count" parameter, the ssizet count parameter is assigned to "int bufsizeleft". Then compare "*size" with "bufsizeleft" . Here, "bufsizeleft" is a negative number, so "*size" is assigned "bufsizeleft" and goes into the third argument of the copytouser function, causing a heap overflow. This is not a security vulnerability because iwldbgfsmonitordataread() is a debugfs operation with 0400 privileges.
- References
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.10.191-1
Affected versions
5.*
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:14 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source