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Schwachstellen / CVE-2021-36159

kritisch

CVE-2021-36159

libfetch: an out of boundary read while libfetch uses strtol to parse the relevant numbers into address bytes leads to information leak or crash

Veröffentlicht Geändert CWE 125
In der Trivy Database seit spätestens 24. Okt. 2026, 07:11 UTCWann der Eintrag vor diesem Build hinzukam, ist nicht erfasst.

Einstufung nach Quelle

NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Red Hat9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Trivys eigenes Label ist CRITICAL. Kritisch laut NVD. Niedriger laut Red Hat (hoch).

Beschreibung

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.

Betroffene Pakete und behobene Versionen

QuellePaketBehoben in
alpine 3.10apk-tools2.10.7-r0
alpine 3.11apk-tools2.10.7-r0
alpine 3.12apk-tools2.10.7-r0
alpine 3.13apk-tools2.12.6-r0
alpine 3.14apk-tools2.12.6-r0
alpine 3.15apk-tools2.12.6-r0
alpine 3.16apk-tools2.12.6-r0
alpine 3.17apk-tools2.12.6-r0
alpine 3.18apk-tools2.12.6-r0
alpine 3.19apk-tools2.12.6-r0
alpine 3.20apk-tools2.12.6-r0
alpine 3.21apk-tools2.12.6-r0
Alle 16 Einträge aus 16 Quellen zeigen
QuellePaketBehoben in
alpine 3.10apk-tools2.10.7-r0
alpine 3.11apk-tools2.10.7-r0
alpine 3.12apk-tools2.10.7-r0
alpine 3.13apk-tools2.12.6-r0
alpine 3.14apk-tools2.12.6-r0
alpine 3.15apk-tools2.12.6-r0
alpine 3.16apk-tools2.12.6-r0
alpine 3.17apk-tools2.12.6-r0
alpine 3.18apk-tools2.12.6-r0
alpine 3.19apk-tools2.12.6-r0
alpine 3.20apk-tools2.12.6-r0
alpine 3.21apk-tools2.12.6-r0
alpine 3.22apk-tools2.12.6-r0
alpine 3.23apk-tools2.12.6-r0
alpine 3.24apk-tools2.12.6-r0
alpine edgeapk-tools2.12.6-r0

Referenzen

Alle 9 Referenzen

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.