CVE-2018-25023 — An issue was discovered in the smallvec crate before 0

An issue was discovered in the smallvec crate before 0.6.13 for Rust. It can create an uninitialized value of any type, including a reference type.

01What is this vulnerability?

An issue was discovered in the smallvec crate before 0.6.13 for Rust. It can create an uninitialized value of any type, including a reference type.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2021-12-26T00:00:00.000Z
• Last modified: 2024-11-18T19:57:59.180Z

09References

• rustsec.org — https://rustsec.org/advisories/RUSTSEC-2018-0018.html
• raw.githubusercontent.com — https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/smallvec/RUSTS…
• github.com — https://github.com/servo/rust-smallvec/commit/e64afc8c473d43e375ab42bd33db2d0d4a…