curl / Docs / Vulnerability table / 7.21.0 vulnerabilities

Vulnerabilities in curl 7.21.0

curl version 7.21.0 was released on June 16 2010. The following 60 security problems are known to exist in this version.

Flaw	From version	To and including	CVE	CWE
TLS and SSH connection too eager reuse	7.16.1	7.83.0	CVE-2022-27782	CWE-305: Authentication Bypass by Primary Weakness
Auth/cookie leak on redirect	4.9	7.82.0	CVE-2022-27776	CWE-522: Insufficiently Protected Credentials
Credential leak on redirect	4.9	7.82.0	CVE-2022-27774	CWE-522: Insufficiently Protected Credentials
STARTTLS protocol injection via MITM	7.20.0	7.78.0	CVE-2021-22947	CWE-349: Acceptance of Extraneous Untrusted Data With Trusted Data
Protocol downgrade required TLS bypassed	7.20.0	7.78.0	CVE-2021-22946	CWE-325: Missing Cryptographic Step
TELNET stack contents disclosure again	7.7	7.77.0	CVE-2021-22925	CWE-457: Use of Uninitialized Variable
Bad connection reuse due to flawed path name checks	7.10.4	7.77.0	CVE-2021-22924	CWE-295: Improper Certificate Validation
TELNET stack contents disclosure	7.7	7.76.1	CVE-2021-22898	CWE-457: Use of Uninitialized Variable
Automatic referer leaks credentials	7.1.1	7.75.0	CVE-2021-22876	CWE-359: Exposure of Private Personal Information to an Unauthorized Actor
FTP wildcard stack overflow	7.21.0	7.73.0	CVE-2020-8285	CWE-674: Uncontrolled Recursion
trusting FTP PASV responses	4.0	7.73.0	CVE-2020-8284	CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
curl overwrite local file with -J	7.20.0	7.70.0	CVE-2020-8177	CWE-641: Improper Restriction of Names for Files and Other Resources
TFTP small blocksize heap buffer overflow	7.19.4	7.65.3	CVE-2019-5482	CWE-122: Heap-based Buffer Overflow
TFTP receive buffer overflow	7.19.4	7.64.1	CVE-2019-5436	CWE-122: Heap-based Buffer Overflow
warning message out-of-buffer read	7.14.1	7.61.1	CVE-2018-16842	CWE-125: Out-of-bounds Read
NTLM password overflow via integer overflow	7.15.4	7.61.0	CVE-2018-14618	CWE-131: Incorrect Calculation of Buffer Size
RTSP bad headers buffer over-read	7.20.0	7.59.0	CVE-2018-1000301	CWE-126: Buffer Over-read
RTSP RTP buffer over-read	7.20.0	7.58.0	CVE-2018-1000122	CWE-126: Buffer Over-read
LDAP NULL pointer dereference	7.21.0	7.58.0	CVE-2018-1000121	CWE-476: NULL Pointer Dereference
FTP path trickery leads to NIL byte out of bounds write	7.12.3	7.58.0	CVE-2018-1000120	CWE-122: Heap-based Buffer Overflow
HTTP authentication leak in redirects	6.0	7.57.0	CVE-2018-1000007	CWE-522: Insufficiently Protected Credentials
FTP wildcard out of bounds read	7.21.0	7.56.1	CVE-2017-8817	CWE-126: Buffer Over-read
IMAP FETCH response out of bounds read	7.20.0	7.56.0	CVE-2017-1000257	CWE-126: Buffer Over-read
FTP PWD response parser out of bounds read	7.7	7.55.1	CVE-2017-1000254	CWE-126: Buffer Over-read
TFTP sends more than buffer size	7.15.0	7.54.1	CVE-2017-1000100	CWE-126: Buffer Over-read
--write-out out of buffer read	6.5	7.53.1	CVE-2017-7407	CWE-126: Buffer Over-read
printf floating point buffer overflow	5.4	7.51.0	CVE-2016-9586	CWE-121: Stack-based Buffer Overflow
cookie injection for other servers	4.9	7.50.3	CVE-2016-8615	CWE-187: Partial Comparison
case insensitive password comparison	7.7	7.50.3	CVE-2016-8616	CWE-178: Improper Handling of Case Sensitivity
OOB write via unchecked multiplication	7.3	7.50.3	CVE-2016-8617	CWE-131: Incorrect Calculation of Buffer Size
double-free in curl_maprintf	5.4	7.50.3	CVE-2016-8618	CWE-415: Double Free
double-free in krb5 code	7.3	7.50.3	CVE-2016-8619	CWE-415: Double Free
curl_getdate read out of bounds	7.12.2	7.50.3	CVE-2016-8621	CWE-126: Buffer Over-read
Use-after-free via shared cookies	7.10.7	7.50.3	CVE-2016-8623	CWE-416: Use After Free
invalid URL parsing with '#'	6.0	7.50.3	CVE-2016-8624	CWE-172: Encoding Error
IDNA 2003 makes curl use wrong host	7.12.0	7.50.3	CVE-2016-8625	CWE-838: Inappropriate Encoding for Output Context
curl escape and unescape integer overflows	7.11.1	7.50.2	CVE-2016-7167	CWE-131: Incorrect Calculation of Buffer Size
Incorrect reuse of client certificates	7.19.6	7.50.1	CVE-2016-7141	CWE-305: Authentication Bypass by Primary Weakness
TLS session resumption client cert bypass	5.0	7.50.0	CVE-2016-5419	CWE-305: Authentication Bypass by Primary Weakness
Re-using connections with wrong client cert	7.7	7.50.0	CVE-2016-5420	CWE-305: Authentication Bypass by Primary Weakness
Windows DLL hijacking	7.11.1	7.49.0	CVE-2016-4802	CWE-94: Improper Control of Generation of Code ('Code Injection')
TLS certificate check bypass with mbedTLS/PolarSSL	7.21.0	7.48.0	CVE-2016-3739	CWE-297: Improper Validation of Certificate with Host Mismatch
remote file name path traversal in curl tool for Windows	7.20.0	7.46.0	CVE-2016-0754	CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
NTLM credentials not-checked for proxy connection re-use	7.10.7	7.46.0	CVE-2016-0755	CWE-305: Authentication Bypass by Primary Weakness
sensitive HTTP server headers also sent to proxies	4.0	7.42.0	CVE-2015-3153	CWE-201: Information Exposure Through Sent Data
Negotiate not treated as connection-oriented	7.10.6	7.41.0	CVE-2015-3148	CWE-305: Authentication Bypass by Primary Weakness
Re-using authenticated connection when unauthenticated	7.10.6	7.41.0	CVE-2015-3143	CWE-305: Authentication Bypass by Primary Weakness
URL request injection	6.0	7.39.0	CVE-2014-8150	CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')
duphandle read out of bounds	7.17.1	7.38.0	CVE-2014-3707	CWE-126: Buffer Over-read
cookie leak with IP address as domain	4.0	7.37.1	CVE-2014-3613	CWE-201: Information Exposure Through Sent Data
IP address wildcard certificate validation	7.10.3	7.35.0	CVE-2014-0139	CWE-297: Improper Validation of Certificate with Host Mismatch
wrong re-use of connections	7.10.7	7.35.0	CVE-2014-0138	CWE-305: Authentication Bypass by Primary Weakness
re-use of wrong HTTP NTLM connection	7.10.6	7.34.0	CVE-2014-0015	CWE-305: Authentication Bypass by Primary Weakness
cert name check ignore OpenSSL	7.18.0	7.32.0	CVE-2013-4545	CWE-297: Improper Validation of Certificate with Host Mismatch
URL decode buffer boundary flaw	7.7	7.30.0	CVE-2013-2174	CWE-126: Buffer Over-read
cookie domain tailmatch	6.0	7.29.0	CVE-2013-1944	CWE-201: Information Exposure Through Sent Data
SSL CBC IV vulnerability	7.10.6	7.23.1	CVE-2011-3389	CWE-924: Improper Enforcement of Message Integrity
URL sanitization vulnerability	7.20.0	7.23.1	CVE-2012-0036	CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')
inappropriate GSSAPI delegation	7.10.6	7.21.6	CVE-2011-2192	CWE-281: Improper Preservation of Permissions
local file overwrite	7.20.0	7.21.1	CVE-2010-3842	CWE-30: Path Traversal

Changelog for curl 7.21.0

See vulnerability summary for the previous release: 7.20.1 or the subsequent release: 7.21.1