Description
libfetch before 2021-07-26, as used in apk-tools, xbps, and other products, mishandles numeric strings for the FTP and HTTP protocols. The FTP passive mode implementation allows an out-of-bounds read because strtol is used to parse the relevant numbers into address bytes. It does not check if the line ends prematurely. If it does, the for-loop condition checks for the '\0' terminator one byte too late.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2021-22783 | libfetch before 2021-07-26, as used in apk-tools, xbps, and other products, mishandles numeric strings for the FTP and HTTP protocols. The FTP passive mode implementation allows an out-of-bounds read because strtol is used to parse the relevant numbers into address bytes. It does not check if the line ends prematurely. If it does, the for-loop condition checks for the '\0' terminator one byte too late. |
References
History
Wed, 28 May 2025 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
Thu, 22 May 2025 02:00:00 +0000
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| References |
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-04T00:47:43.816Z
Reserved: 2021-07-05T00:00:00.000Z
Link: CVE-2021-36159
No data.
Status : Modified
Published: 2021-08-03T14:15:08.233
Modified: 2024-11-21T06:13:13.570
Link: CVE-2021-36159
OpenCVE Enrichment
No data.
Weaknesses
EUVD