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CVE-2016-4558
The BPF subsystem in the Linux kernel before 4.5.5 mishandles reference counts, which allows local users to cause a denial of service…
High7.0EPSS 0.86%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The BPF subsystem in the Linux kernel before 4.5.5 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted application on (1) a system with more than 32 Gb of memory, related to the program reference count or (2) a 1 Tb system, related to the map reference count.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.86% · top 41% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.0.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (8)
- USN-3006-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1334303 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-3005-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://github.com/torvalds/linux/commit/92117d8443bc5afacc8d5ba82e541946310f106e (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-3007-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20160506 CVE Requests: Linux: BPF flaws (one use-after-free / local root privilege escalation) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92117d8443bc5afacc8d5ba82e541946310f106e (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .