Linux Kernel BPF bpf_sys_bpf out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel. This impacts the function bpf_sys_bpf of the component BPF. Such manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2022-2785. The attack can be launched remotely. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System) (affected version not known) and classified as critical. Affected by this issue is the function bpf_sys_bpf of the component BPF. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

There exists an arbitrary memory read within the Linux Kernel BPF - Constants provided to fill pointers in structs passed in to bpf_sys_bpf are not verified and can point anywhere, including memory not owned by BPF. An attacker with CAP_BPF can arbitrarily read memory from anywhere on the system. We recommend upgrading past commit 86f44fcec22c

The weakness was disclosed 09/23/2022. The advisory is shared for download at lore.kernel.org. This vulnerability is handled as CVE-2022-2785 since 08/11/2022. There are known technical details, but no exploit is available.

Applying the patch 86f44fcec22c is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.2
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CNA Base Score: 6.7
CNA Vector (Google Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 86f44fcec22c

Timelineinfo

08/11/2022 🔍
09/23/2022 +43 days 🔍
09/23/2022 +0 days 🔍
04/14/2026 +1299 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: lore.kernel.org
Status: Confirmed

CVE: CVE-2022-2785 (🔍)
GCVE (CVE): GCVE-0-2022-2785
GCVE (VulDB): GCVE-100-209372

Entryinfo

Created: 09/23/2022 14:42
Updated: 04/14/2026 18:10
Changes: 09/23/2022 14:42 (52), 04/14/2026 18:10 (26)
Complete: 🔍
Cache ID: 216::103

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