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Use After Free Affecting curl package, versions <7.62.0-r0

Severity

 Recommended
0.0
critical
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.83% (83rd percentile)

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  • Snyk ID SNYK-ALPINE320-CURL-7008608
  • published 23 May 2024
  • disclosed 31 Oct 2018
Report a new vulnerability Found a mistake?

Introduced: 31 Oct 2018

CVE-2018-16840 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Alpine:3.20 curl to version 7.62.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Alpine. See How to fix? for Alpine:3.20 relevant fixed versions and status.

A heap use-after-free flaw was found in curl versions from 7.59.0 through 7.61.1 in the code related to closing an easy handle. When closing and cleaning up an 'easy' handle in the Curl_close() function, the library code first frees a struct (without nulling the pointer) and might then subsequently erroneously write to a struct field within that already freed struct.