CVE-2024-7264
ASN.1 date parser overread
- State
- Published
- Severity
- 6.3 Medium
- Published
- Jul 31, 2024
- Updated
- Oct 15, 2026
- Reserved
- Jul 30, 2024
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L | CISA-ADP |
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
curlcurl |
|
References
- json
- www
- issue
- http://www.openwall.com/lists/oss-security/2024/07/31/1
- https://github.com/curl/curl/commit/27959ecce75cdb2809c0bdb3286e60e08fadb519
- https://security.netapp.com/advisory/ntap-20240828-0008/
- https://security.netapp.com/advisory/ntap-20241025-0010/
- https://security.netapp.com/advisory/ntap-20241025-0006/
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html
- https://cert-portal.siemens.com/productcert/html/ssa-089022.html
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