Security Bulletin: Multiple vulnerabilities in libcURL affect IBM Rational ClearCase ( CVE-2022-42915, CVE-2022-42916, CVE-2022-32221, CVE-2022-35252, CVE-2022-32205, CVE-2022-32206, CVE-2022-32207 )

Summary

libcURL vulnerabilities were disclosed by the libcURL Project. libcURL is used by IBM Rational ClearCase. IBM Rational ClearCase has addressed the applicable CVEs.

Vulnerability Details

CVEID:CVE-2022-42915
**DESCRIPTION:**cURL libcurl is vulnerable to a denial of service, caused by a double-free flaw in the error/cleanup handling. By sending a specially-crafted CONNECT request, a remote attacker could exploit this vulnerability to cause HTTP proxy to refuse the request, and results in a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/239060 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-2022-42916
**DESCRIPTION:**cURL libcurl could allow a remote attacker to obtain sensitive information, caused by a HSTS bypass flaw . By sending a specially-crafted URL with ASCII counterparts as part of the IDN conversion in host name, an attacker could exploit this vulnerability to obtain sensitive information from clear-text HTTP transmission, 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/239061 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-2022-32221
**DESCRIPTION:**cURL libcurl could allow a remote attacker to bypass security restrictions, caused by a flaw when using the read callback (CURLOPT_READFUNCTION) to ask for data to send. By sending a specially-crafted request, an attacker could exploit this vulnerability to send wrong data or doing a use-after-free is not present in libcurl code.
CVSS Base score: 8.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/239058 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L)

CVEID:CVE-2022-35252
**DESCRIPTION:**cURL libcurl is vulnerable to a denial of service, caused by a flaw when cookies contain control codes are later sent back to an HTTP(S) server. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause a “sister site” to deny service to siblings.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/234980 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2022-32205
**DESCRIPTION:**cURL libcurl is vulnerable to a denial of service, caused by an issue with the ability to set excessive amounts of Set-Cookie: headers in a HTTP response to curl by a server. By persuading a victim to connect a specially-crafted server, a remote attacker could exploit this vulnerability to create requests that become larger than the threshold, and results in a denial of service condition.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/229739 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID:CVE-2022-32206
**DESCRIPTION:**cURL libcurl is vulnerable to a denial of service, caused by a flaw in the number of acceptable “links” in the “chained” HTTP compression algorithms. By persuading a victim to connect a specially-crafted server, a remote attacker could exploit this vulnerability to insert a virtually unlimited number of compression steps, and results in a denial of service condition.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/229740 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID:CVE-2022-32207
**DESCRIPTION:**cURL libcurl could allow a remote attacker to obtain sensitive information, caused by improper preservation of permissions when saving cookies, alt-svc and hsts data to local files. By sending a specially-crafted request, an attacker could exploit this vulnerability to obtain sensitive information, 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/229741 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)

Affected Products and Versions

Remediation/Fixes

Apply a fix pack as listed in the table below. The fix pack includes libcURL 7.86.0**.**

Affected Versions

|

Applying the fix

—|—
9.1 through 9.1.0.4| Install Rational ClearCase Fix Pack 4 (9.1.0.4) for 9.1
9.0.2 through 9.0.2.7| Install Rational ClearCase Fix Pack 7 (9.0.2.7) for 9.0.2

10.0.0 through 10.0.0.1

| Install Rational ClearCase Fix Pack 1 (10.0.0.1) for 10.0.0

For 9.0.1.X and earlier releases, IBM recommends upgrading to a fixed, supported version/release/platform of the product.

Workarounds and Mitigations

None