Out-of-Bounds Affecting rls package, versions <0:1.56.1-1.amzn2.0.1


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.65% (80th percentile)

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  • Snyk IDSNYK-AMZN2-RLS-2950809
  • published15 Jul 2022
  • disclosed11 Apr 2021

Introduced: 11 Apr 2021

CVE-2021-28878  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 rls to version 0:1.56.1-1.amzn2.0.1 or higher.
This issue was patched in ALAS2-2022-1816.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rls package and not the rls package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

In the standard library in Rust before 1.52.0, the Zip implementation calls __iterator_get_unchecked() more than once for the same index (under certain conditions) when next_back() and next() are used together. This bug could lead to a memory safety violation due to an unmet safety requirement for the TrustedRandomAccess trait.

CVSS Base Scores

version 3.1