Improper Handling of Exceptional Conditions Affecting rustc package, versions <1.53.0+dfsg1-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.57% (73rd percentile)

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  • Snyk IDSNYK-ECHOLATEST-RUSTC-18674681
  • published12 Aug 2026
  • disclosed11 Apr 2021

Introduced: 11 Apr 2021

CVE-2021-28876  (opens in a new tab)
CWE-755  (opens in a new tab)

How to fix?

Upgrade Echo:latest rustc to version 1.53.0+dfsg1-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rustc package and not the rustc package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

In the standard library in Rust before 1.52.0, the Zip implementation has a panic safety issue. It calls __iterator_get_unchecked() more than once for the same index when the underlying iterator panics (in certain conditions). 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