CVE-2024-7264

Public Exploit
ASN.1 date parser overread

Description

libcurl's ASN1 parser code has the `GTime2str()` function, used for parsing an ASN.1 Generalized Time field. If given an syntactically incorrect field, the parser might end up using -1 for the length of the *time fraction*, leading to a `strlen()` getting performed on a pointer to a heap buffer area that is not (purposely) null terminated. This flaw most likely leads to a crash, but can also lead to heap contents getting returned to the application when [CURLINFO_CERTINFO](https://curl.se/libcurl/c/CURLINFO_CERTINFO.html) is used.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 2.20% Top 20%
Vendor Advisory curl.se Vendor Advisory curl.se
Affected: curl curl
Published at:
Updated at:

References

Link Tags
https://curl.se/docs/CVE-2024-7264.json vendor advisory
https://curl.se/docs/CVE-2024-7264.html vendor advisory
https://hackerone.com/reports/2629968 third party advisory issue tracking exploit permissions required
http://www.openwall.com/lists/oss-security/2024/07/31/1 mailing list
https://github.com/curl/curl/commit/27959ecce75cdb2809c0bdb3286e60e08fadb519
https://security.netapp.com/advisory/ntap-20240828-0008/

Frequently Asked Questions

What is the severity of CVE-2024-7264?
CVE-2024-7264 has been scored as a medium severity vulnerability.
How to fix CVE-2024-7264?
To fix CVE-2024-7264, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-7264 being actively exploited in the wild?
It is possible that CVE-2024-7264 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-7264?
CVE-2024-7264 affects curl curl.
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