Security Bulletin: Multiple vulnerabilities in Curl affect PowerSC

Vulnerability Details

CVEID:   CVE-2021-22897
DESCRIPTION:   cURL libcurl could allow a remote attacker to obtain sensitive information, caused by a mistake in the code for CURLOPT_SSL_CIPHER_LIST when libcurl is built to use the Schannel TLS library. An attacker could exploit this vulnerability to expose data element to wrong session.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/203609 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID:   CVE-2021-22922
DESCRIPTION:   cURL libcurl could allow a remote attacker to bypass security restrictions, caused by not removing incorrect content by the metalink feature. By persuading a victim to download specially-crafted content, an attacker could exploit this vulnerability to access malicious content to keep in the file on disk for further attack.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/206045 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

CVEID:   CVE-2021-22901
DESCRIPTION:   cURL libcurl could allow a remote attacker to execute arbitrary code on the system, caused by a flaw when a new TLS session is negotiated or a client certificate is requested on an existing connection. By persuading a victim to visit a specially-crafted Web site, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 8.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/202563 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

CVEID:   CVE-2021-22898
DESCRIPTION:   cURL libcurl could allow a remote attacker to obtain sensitive information, caused by a flaw in the option parser for sending NEW_ENV variables. By sending a specially-crafted request using a clear-text network protocol, an attacker could exploit this vulnerability to obtain sensitive internal information to the server, and use this information to launch further attacks against the affected system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/202562 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID:   CVE-2021-22945
DESCRIPTION:   cURL libcurl is vulnerable to a denial of service, caused by a use-after-free and double free flaw when sending data to an MQTT server. By sending a specially-crafted data, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209451 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2021-22924
DESCRIPTION:   An unspecified error with bad connection reused due to improper path name validation in cURL libcurl has an unknown impact and attack vector.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/206047 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:   CVE-2021-22925
DESCRIPTION:   cURL libcurl could allow a remote attacker to obtain sensitive information, caused by a flaw in the option parser for sending NEW_ENV variables. By sniffing the network traffic, an attacker could exploit this vulnerability to obtain TELNET stack contents, and use this information to launch further attacks against the affected system.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/206051 for the current score.
CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID:   CVE-2021-22923
DESCRIPTION:   cURL libcurl could allow a remote attacker to obtain sensitive information, caused by improper protection to user credentials by the metalink feature. By persuading a victim to connect a specially-crafted server, an attacker could exploit this vulnerability to obtain user credentials, and use this information to launch further attacks against the affected system.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/206046 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)

CVEID:   CVE-2021-22947
DESCRIPTION:   cURL libcurl is vulnerable to a man-in-the-middle attack, caused by a flaw when connecting to an IMAP, POP3, SMTP or FTP server to exchange data securely using STARTTLS to upgrade the connection to TLS level. An attacker could exploit this vulnerability to launch a man-in-the-middle attack and gain access to the communication channel between endpoints to obtain sensitive information or further compromise the system.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209453 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)

CVEID:   CVE-2021-22946
DESCRIPTION:   cURL libcurl could allow a remote attacker to obtain sensitive information, caused by a required TLS bypassed issue. By sniffing the network, an attacker could exploit this vulnerability to obtain sensitive data in clear text over the network, and use this information to launch further attacks against the affected system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209452 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)