Security Bulletin: Multiple vulnerabilities in libcURL affect IBM Rational ClearCase.

Summary

libcURL vulnerabilities were disclosed by the libcURL Project. libcURL is used by IBM Rational ClearCase. [CVE-2023-28322, CVE-2023-28320, CVE-2023-28321]

Vulnerability Details

CVEID:CVE-2023-28322
**DESCRIPTION:**cURL libcurl could allow a remote attacker to bypass security restrictions, caused by a flaw in the logic for a reused handle when it is (expected to be) changed from a PUT to a POST… By sending a specially crafted request, an attacker could exploit this vulnerability to cause application to misbehave and either send off the wrong data or use memory after free or similar in the second transfer.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/255626 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2023-28320
**DESCRIPTION:**cURL libcurl is vulnerable to a denial of service, caused by a race condition flaw in the siglongjmp() function. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause the application to crash or misbehave.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/255624 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2023-28321
**DESCRIPTION:**cURL libcurl could allow a remote attacker to bypass security restrictions, caused by a flaw when listed as “Subject Alternative Name” in TLS server certificates. By sending a specially crafted request, an attacker could exploit this vulnerability to accept mismatch wildcard patterns.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/255625 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)

Affected Products and Versions

Remediation/Fixes

Apply a fix pack as listed in the table below.

Affected Versions

|

Applying the fix

—|—
9.1 through 9.1.0.4| Install Rational ClearCase Fix Pack 5 (9.1.0.5) for 9.1
9.0.2 through 9.0.2.7| Install Rational ClearCase Fix Pack 8 (9.0.2.8) for 9.0.2

For 9.0.2.X and earlier releases, IBM recommends upgrading to a fixed, supported version/release/platform of the product.

_For 10.0.0.x releases, IBM recommends upgrading to 10.0.1.x release. _

Workarounds and Mitigations

None