Use After Free Affecting curl package, versions [7.29.0,7.72.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.39% (74th percentile)

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  • Snyk IDSNYK-UNMANAGED-CURL-2317510
  • published14 Dec 2021
  • disclosed14 Dec 2020
  • creditUnknown

Introduced: 14 Dec 2020

CVE-2020-8231  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade curl to version 7.72.0 or higher.

Overview

curl is a command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET and TFTP. libcurl offers a myriad of powerful features.

Affected versions of this package are vulnerable to Use After Free. Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data.

CVSS Scores

version 3.1