What is CVE-2019-15554?

CVE-2019-15554 is a critical-severity vulnerability in Servo Smallvec, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2019-08-26.

How severe is CVE-2019-15554?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2019-15554 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Servo Smallvec

CVE-2019-15554

An issue was discovered in the smallvec crate before 0.6.10 for Rust. There is memory corruption for certain grow attempts with less than the current capacity.

Vulnerability class: Buffer Overflow

EPSS: 0.021 (80.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Servo Smallvec
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

Artisan-Lab/Rust-memory-safety-bugs

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-15554?: CVE-2019-15554 is a critical-severity vulnerability in Servo Smallvec, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2019-08-26.
How severe is CVE-2019-15554?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-15554 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.