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GHSA-585q-cm62-757j json

mnl has segmentation fault and invalid memory read in `mnl::cb_run`

published last yr. modified 9mo ago also RUSTSEC-2025-0142

cvss
—
not scored
cisa kev
Not listed
not in CISA's catalog
epss
—
no score, EPSS covers CVEs only
public exploits
0
none known

Summary

The function `mnl::cb_run` is marked as safe but exhibits unsound behavior when processing malformed Netlink message buffers.

Passing a crafted byte slice to `mnl::cb_run` can trigger memory violations. The function does not sufficiently validate the input buffer structure before processing, leading to out-of-bounds reads.

This vulnerability allows an attacker to cause a Denial of Service (segmentation fault) or potentially read unmapped memory by providing a malformed Netlink message.

Patch / fix

  • crates.io mnl 0.3.1

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Affected packages

ecosystem package affected fixed in
crates.io mnl
<0.3.1
>=0.0.0-0, <0.3.1
0.3.1

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.