Out-of-bounds Read Affecting busybox package, versions <1.30.1-r2
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Test your applications- Snyk ID SNYK-ALPINE310-BUSYBOX-454964
- published 9 Jan 2019
- disclosed 9 Jan 2019
Introduced: 9 Jan 2019
CVE-2019-5747 Open this link in a new tabHow to fix?
Upgrade Alpine:3.10 busybox to version 1.30.1-r2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream busybox package and not the busybox package as distributed by Alpine.
See How to fix? for Alpine:3.10 relevant fixed versions and status.
An issue was discovered in BusyBox through 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP client, server, and/or relay) might allow a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to assurance of a 4-byte length when decoding DHCP_SUBNET. NOTE: this issue exists because of an incomplete fix for CVE-2018-20679.
References
- https://seclists.org/bugtraq/2019/Sep/7
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5747
- https://security-tracker.debian.org/tracker/CVE-2019-5747
- http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html
- https://bugs.busybox.net/show_bug.cgi?id=11506
- https://git.busybox.net/busybox/commit/?id=74d9f1ba37010face4bd1449df4d60dd84450b06
- http://seclists.org/fulldisclosure/2019/Sep/7
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-5747
- https://usn.ubuntu.com/3935-1/