Bug 1667067 (CVE-2019-5747) - CVE-2019-5747 busybox: Out of bounds read in udhcp components resulting in information disclosure
Summary: CVE-2019-5747 busybox: Out of bounds read in udhcp components resulting in in...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2019-5747
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1667069
Blocks: 1666670
TreeView+ depends on / blocked
 
Reported: 2019-01-17 11:17 UTC by Dhananjay Arunesh
Modified: 2021-02-16 22:31 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2019-01-22 14:10:55 UTC
Embargoed:

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Description Dhananjay Arunesh 2019-01-17 11:17:40 UTC 
An issue was discovered in BusyBox through 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP server, client, 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.
 
Upstream issue:
 
https://bugs.busybox.net/show_bug.cgi?id=11506
 
Upstream patch:
 
https://git.busybox.net/busybox/commit/?id=74d9f1ba37010face4bd1449df4d60dd84450b06
Comment 1 Dhananjay Arunesh 2019-01-17 11:17:59 UTC 
Created busybox tracking bugs for this issue:

Affects: fedora-all [bug 1667069]
Comment 2 Stefan Cornelius 2019-01-22 14:09:29 UTC 
Statement:

This issue did not affect the versions of busybox as shipped with Red Hat Enterprise Linux 5 and 6.
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