CVE-2018-25020
HIGH
7.8
CVSS Score
Published: December 8, 2021 at 04:47 AM UTC
Updated: June 17, 2026 at 01:54 AM UTC
18 products affected across 2 vendorsLinux KernelCloud BackupH700S Firmware
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Severity
HIGH7.8
Exploit prediction
EPSS 0.5%
Description
The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. This affects kernel/bpf/core.c and net/core/filter.c.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 4.17
Affected range stops below 4.17, so it looks safe — our inference, not a vendor statement
Cloud Backup· NetAppdrupal
95%All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
x_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.htmlx_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/torvalds/linux/commit/050fad7c4534c13c8eb1d9c2ba66012e014773cbx_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20211229-0005/CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-120
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