CVE-2021-21781
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-21781
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-21781.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-21781
- Aliases
-
- A-197850306
- PUB-A-197850306
- Related
- Published
- 2021-08-18T15:15:07Z
- Modified
- 2024-09-18T01:00:22Z
- Severity
-
- 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
An information disclosure vulnerability exists in the ARM SIGPAGE functionality of Linux Kernel v5.4.66 and v5.4.54. The latest version (5.11-rc4) seems to still be vulnerable. A userland application can read the contents of the sigpage, which can leak kernel memory contents. An attacker can read a process’s memory at a specific offset to trigger this vulnerability. This was fixed in kernel releases: 4.14.222 4.19.177 5.4.99 5.10.17 5.11
- References
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
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