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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-6197 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 3.x Severity and Vector Strings:

NIST CVSS score
NIST: NVD
Base Score:  7.5 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

ADP:  CISA-ADP
Base Score:  7.5 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://www.openwall.com/lists/oss-security/2024/07/24/1 CVE, curl Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2024/07/24/5 CVE, curl Mailing List  Third Party Advisory 
https://curl.se/docs/CVE-2024-6197.html CVE, curl Vendor Advisory 
https://curl.se/docs/CVE-2024-6197.json CVE, curl Vendor Advisory 
https://hackerone.com/reports/2559516 CVE, curl Exploit  Issue Tracking  Technical Description 
https://security.netapp.com/advisory/ntap-20241129-0008/ CVE

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-Other Other cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
8.6.0		Up to (excluding)
8.9.0

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-6197
NVD Published Date:
07/24/2024
NVD Last Modified:
11/29/2024
Source:
curl