CVE-2024-6197

CVE Details

Visit the official vulnerability details page for CVE-2024-6197 to learn more.

Initial Publication

10/26/2024

Last Update

10/26/2024

Third Party Dependency

curl

NIST CVE Summary

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.

CVE Severity

7.5

Our Official Summary

This CVE is reported on nginx-ingress-controller image on the libcurl's ASN1 parser. The vulnerable code path can be triggered by a malicious operation offering an especially crafted TLS certificate. Problem is fixed in curl version >=8.9.0. Investigating a possible fix.

Status

Ongoing

Affected Products & Versions

Version	Palette Enterprise	Palette Enterprise Airgap	VerteX	VerteX Airgap
4.5.10	Impacted	Impacted	No Impact	Impacted
4.5.8	Impacted	Impacted	No Impact	Impacted
4.5.5	Impacted	Impacted	No Impact	Impacted
4.5.4	Impacted	Impacted	No Impact	Impacted
4.4.20	Impacted	Impacted	No Impact	Impacted

Revision History

Date	Revision
11/15/2024	Impacted versions changed from 4.5.4, 4.5.5, 4.5.8, 4.4.20 to 4.5.4, 4.5.5, 4.5.8, 4.4.20, 4.5.10
11/13/2024	Impacted versions changed from 4.5.4, 4.5.5, 4.5.8 to 4.5.4, 4.5.5, 4.5.8, 4.4.20
11/12/2024	Impacted versions changed from 4.5.4, 4.5.5 to 4.5.4, 4.5.5, 4.5.8
10/27/2024	Impacted versions changed from 4.5.4 to 4.5.4, 4.5.5