DEBIAN-CVE-2021-33624

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2021-33624
Downstream
DLA-2785-1
Published: 23 Jun 2021, 16:15
Last modified:28 Apr 2026, 20:22

Vulnerability Summary

Overall Risk (default)
low
19/100
CVSS Score
4.7 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

23 Jun 2021, 16:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:22
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Systems

  • debian•linux

    < 5.10.46-1 | < 5.10.46-1 | < 5.10.46-1 | < 5.10.46-1

References (1)