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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTQ5ZnEtcHc3Ny02cXhq

Use after free in string-interner

Affected versions of this crate did not clone contained strings when an interner is cloned. Interners have raw pointers to the contained strings, and they keep pointing the strings which the old interner owns, after the interner is cloned. If a new cloned interner is alive and the old original interner is dead, the new interner has dangling pointers to the old interner's storage, which is already dropped.

This allows an attacker to read the already freed memory. The dangling pointers are used by the interners to check a string is already interned. An attacker can do brute force attack to get the data pointed by the dangling pointer.

Permalink: https://github.com/advisories/GHSA-49fq-pw77-6qxj
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTQ5ZnEtcHc3Ny02cXhq
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 2 years ago
Updated: 11 months ago

CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Identifiers: GHSA-49fq-pw77-6qxj, CVE-2019-16882
References:

• https://nvd.nist.gov/vuln/detail/CVE-2019-16882
• https://github.com/Robbepop/string-interner/issues/9
• https://rustsec.org/advisories/RUSTSEC-2019-0023.html
• https://github.com/Robbepop/string-interner/commit/d91dac0cfe42512526879cdfaac0b81beff54089
• https://github.com/Robbepop/string-interner/pull/10
• https://github.com/advisories/GHSA-49fq-pw77-6qxj

Repository: https://github.com/Robbepop/string-interner
Blast Radius: 15.8

Affected Packages