PT-2024-5389 · Libcurl+5 · Libcurl+5
Z2
·
Published
2024-06-19
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Updated
2026-05-18
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CVE-2024-6197
CVSS v2.0
7.8
High
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
libcurl (affected versions not specified)
Description
The issue is related to libcurl's ASN1 parser, specifically the
utf8asn1str() function used for parsing an ASN.1 UTF-8 string. When an invalid field is detected, the function returns an error and invokes free() on a 4-byte local stack buffer. This can lead to the overwriting of nearby stack memory, with the content of the overwrite decided by the free() implementation, likely including memory pointers and a set of flags. The most likely outcome of exploiting this flaw is a crash, although more serious results cannot be ruled out in special circumstances. According to JFrog security researchers, the preconditions for vulnerability are more extensive than initially believed, making real-world exploitation very difficult.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
RCE
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Red Os
Suse
Windows
Libcurl