CVE-2021-33624
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-33624
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-33624.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-33624
- Aliases
-
- A-192972537
- PUB-A-192972537
- Related
- Published
- 2021-06-23T16:15:07Z
- Modified
- 2024-11-21T06:09:13Z
- Downstream
- Severity
-
- 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db.
- References
-
- http://www.openwall.com/lists/oss-security/2021/06/21/1
- https://github.com/torvalds/linux/commit/9183671af6dbf60a1219371d4ed73e23f43b49db
- https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
- https://www.usenix.org/conference/usenixsecurity21/presentation/kirzner
- https://security-tracker.debian.org/tracker/CVE-2021-33624
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