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
Link | Resource |
---|---|
http://www.openwall.com/lists/oss-security/2021/06/21/1 | Mailing List Exploit Third Party Advisory |
https://github.com/torvalds/linux/commit/9183671af6dbf60a1219371d4ed73e23f43b49db | Patch Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html | Issue Tracking Third Party Advisory |
https://www.usenix.org/conference/usenixsecurity21/presentation/kirzner | Third Party Advisory |
Configurations
History
08 Aug 2023, 14:22
Type | Values Removed | Values Added |
---|---|---|
CWE | CWE-843 |
12 Nov 2021, 20:15
Type | Values Removed | Values Added |
---|---|---|
CPE | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | |
References | (MLIST) https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html - Issue Tracking, Third Party Advisory |
16 Oct 2021, 01:15
Type | Values Removed | Values Added |
---|---|---|
References |
|
06 Jul 2021, 13:32
Type | Values Removed | Values Added |
---|---|---|
CWE | CWE-203 | |
References | (CONFIRM) http://www.openwall.com/lists/oss-security/2021/06/21/1 - Mailing List, Exploit, Third Party Advisory | |
References | (CONFIRM) https://github.com/torvalds/linux/commit/9183671af6dbf60a1219371d4ed73e23f43b49db - Patch, Third Party Advisory | |
References | (MISC) https://www.usenix.org/conference/usenixsecurity21/presentation/kirzner - Third Party Advisory | |
CVSS |
v2 : v3 : |
v2 : 4.7
v3 : 4.7 |
CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
23 Jun 2021, 16:15
Type | Values Removed | Values Added |
---|---|---|
New CVE |
Information
Published : 2021-06-23 16:15
Updated : 2024-02-04 21:47
NVD link : CVE-2021-33624
Mitre link : CVE-2021-33624
CVE.ORG link : CVE-2021-33624
JSON object : View
Products Affected
debian
- debian_linux
linux
- linux_kernel
CWE
CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')