PT-2019-14266 · Rust · Simdjson

Published 2019-06-24 · Updated 2021-08-25 · CVE-2019-15550

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions simd-json crate versions prior to 0.1.15

Description The issue is related to an out-of-bounds read and incorrect crossing of a page boundary, which can lead to a segmentation fault when parsing strings. This occurs because the affected version of the crate does not guard against accessing memory beyond the range of its input data. Specifically, a pointer cast to read data into a 256-bit register can cause the issue when the end of the read overlaps into the next page. This allows an attacker to potentially crash a service.

Recommendations For versions prior to 0.1.15, update to version 0.1.15 or later, which includes a fix that uses a padding buffer for the last read from the input to prevent reading over the boundary of the input data.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2019-15550

GHSA-GWFJ-PW2X-H6C2

RUSTSEC-2019-0008

Affected Products

Simdjson

References · 8

• https://osv.dev/vulnerability/GHSA-gwfj-pw2x-h6c2 · Vendor Advisory
• https://osv.dev/vulnerability/RUSTSEC-2019-0008 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-15550 · Security Note
• https://osv.dev/vulnerability/CVE-2019-15550 · Vendor Advisory
• https://github.com/Licenser/simdjson-rs · Note
• https://github.com/Licenser/simdjson-rs/pull/27 · Note
• https://rustsec.org/advisories/RUSTSEC-2019-0008.html · Note
• https://crates.io/crates/simd-json · Note