ALPINE-CVE-2026-0799
- Source
- https://security.alpinelinux.org/vuln/CVE-2026-0799
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-0799.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-0799
- Upstream
- Published
- 2026-09-05T19:16:55Z
- Modified
- 2026-09-14T16:18:08Z
- Severity
-
- 8.7 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In BPF instructions that load/store a value from/to a scratch memory register the register index is an unsigned 32-bit integer and must not exceed 15, but libpcap BPF interpreter does not validate the value. In particular uncommon use cases a crafted filter program can cause the interpreter to try reading and writing the OS process memory in the 16GiB starting at the current stack frame on 64-bit architectures and in the entire address space on 32-bit architectures.
- References
Affected packages
Alpine:v3.21 / libpcap
Package
- Name
- libpcap
- Purl
- pkg:apk/alpine/libpcap?arch=source
Alpine:v3.22 / libpcap
Package
- Name
- libpcap
- Purl
- pkg:apk/alpine/libpcap?arch=source
Alpine:v3.23 / libpcap
Package
- Name
- libpcap
- Purl
- pkg:apk/alpine/libpcap?arch=source