Home/CVE/arch/mips/net/bpf_jit.c in the Linux kernel before 5.4.10 can generate undesirable machine code when transforming unpriv
CVE

CVE-2021-38300

arch/mips/net/bpf_jit.c in the Linux kernel before 5.4.10 can generate undesirable machine code when transforming unpriv

arch/mips/net/bpf_jit.c in the Linux kernel before 5.4.10 can generate undesirable machine code when transforming unprivileged cBPF programs, allowing execution of arbitrary code within the kernel context. This occurs because conditional branches can exceed the 128 KB limit of the MIPS architecture.

HIGH · CVSS 7.8 EPSS 0.00166
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
▤

Affected Products & Versions

15
linux kernel>= 3.16 and < 4.14.251
linux kernel>= 4.15 and < 4.19.211
linux kernel>= 4.20 and < 5.4.153
linux kernel>= 5.5 and < 5.10.71
linux kernel>= 5.11 and < 5.14.10
netapp cloud backupall versions
netapp h410c firmwareall versions
netapp h300s firmwareall versions
⚠

Public Exploits & PoCs

1
pocgit.kernel.org · ?id=37cb28ec7d3a36a5bace7063a3dba633ab110f8bgit.kernel.org
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD20 Sep 2021 · 06:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

1
msrcCVE-2021-38300
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2021/09/15/5Mailing ListPatchThird Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.10Mailing ListVendor Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlThird Party Advisory
https://security.netapp.com/advisory/ntap-20211008-0003/Third Party Advisory
https://www.debian.org/security/2022/dsa-5096Third Party Advisory
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