Out-of-bounds Write Affecting curl package, versions [7.54.1,7.61.0)


Severity

Recommended
0.0
critical
0
10

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

Threat Intelligence

EPSS
0.87% (83rd percentile)

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  • Snyk IDSNYK-UNMANAGED-CURL-2317563
  • published14 Dec 2021
  • disclosed11 Jul 2018
  • creditUnknown

Introduced: 11 Jul 2018

CVE-2018-0500  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade curl to version 7.61.0 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 Out-of-bounds Write. Curl_smtp_escape_eob in lib/smtp.c in curl 7.54.1 to and including curl 7.60.0 has a heap-based buffer overflow that might be exploitable by an attacker who can control the data that curl transmits over SMTP with certain settings (i.e., use of a nonstandard --limit-rate argument or CURLOPT_BUFFERSIZE value).

CVSS Scores

version 3.1