GHSA-2fjw-whxm-9v4q

libnftnl has Heap-based Buffer Overflow in nftnl::Batch::with_page_size (nftnl-rs)

Published 25 Nov 2025Modified 1 Dec 2025

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

GHSA9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:L/SA:N

Trivy's own label is CRITICAL. Rated critical by GHSA.

Description

A heap-buffer-overflow vulnerability exists in the Rust wrapper for libnftnl, triggered via the nftnl::Batch::with_page_size constructor. When a small or malformed page size is provided, the underlying C code allocates an insufficient buffer, leading to out-of-bounds writes during batch initialization. The flaw was fixed in commit 94a286f by adding an overflow check: ```Rust batch_page_size .checked_add(crate::nft_nlmsg_maxsize()) .expect("batch_page_size is too large and would overflow"); ```

Affected packages and fixed versions

Source	Package	Fixed in
cargo::GitHub Security Advisory Rust	nftnl	0.9.0

References

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