Summary libcurl is used by DataStage on Cloud Pak for Data as part of API communication. Vulnerability Details CVEID:CVE-2024-6197 DESCRIPTION: libcurl's ASN1 parser has this utf8asn1str() function used for parsing an ASN.1 UTF-8 string. Itcan detect an invalid field and return error. Unfortunately, when doing so it also invokes free() on a 4 byte localstack buffer. Most modern malloc implementations detect this error and immediately abort. Some however accept the input pointer and add that memory to its list of available chunks. This leads to the overwriting of nearby stack memory. The content of the overwrite is decided by the free() implementation; likely to be memory pointers and a set of flags. The most likely outcome of exploting this flaw is a crash, although it cannot be ruled out that more serious results can be had in special circumstances. CVSS Source: NVD CVSS Base score: 7.5 CVSS Vector:(CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Affected Products and Versions Affected Product(s)| Version(s) —|— DataStage on Cloud Pak for Data| 5.2.0 Remediation/Fixes IBM strongly recommends addressing the vulnerability now by upgrading to DataStage on Cloud Pak for Data version 5.2.1 or higher. The upgrade instructions can be found here. Product(s)| Version(s) number and/or range| Remediation/Fix/Instructions —|—|— DataStage on Cloud Pak for Data| 5.2.0| Upgrade to version 5.2.1 or higher Workarounds and Mitigations…Read More
Security Bulletin: DataStage on Cloud Pak for Data is vulnerable to stack overwrite due to the libcurl package (CVE-2024-6197)
