In FRRouting FRR before 8.5, the service user (usually frr) can escalate its privileges to root by monitoring the configuration directory (/etc/frr) and replacing config files upon creation with, for example, symlinks to change the ownership of arbitrary files. This is a TOCTOU Race Condition caused by a combination of touch and chown.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| FRRouting | FRRouting | unaffected |
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Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Sun, 13 Sep 2026 23:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Frrouting
Frrouting frrouting |
|
| Weaknesses | CWE-367 | |
| CPEs | cpe:2.3:a:frrouting:frrouting:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Frrouting
Frrouting frrouting |
|
| Metrics |
cvssV3_1
|
Sun, 13 Sep 2026 23:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In FRRouting FRR before 8.5, the service user (usually frr) can escalate its privileges to root by monitoring the configuration directory (/etc/frr) and replacing config files upon creation with, for example, symlinks to change the ownership of arbitrary files. This is a TOCTOU Race Condition caused by a combination of touch and chown. | |
| References |
|
Projects
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MITRE
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-09-13T23:27:43.157Z
Reserved: 2022-10-13T00:00:00.000Z
Link: CVE-2022-42917
Vulnrichment
No data.
NVD
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Redhat
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OpenCVE Enrichment
No data.
Weaknesses