CVE-2019-5747 — Out-of-bounds Read in Busybox

CWE-125 — Out-of-bounds Read9 documents7 sources
Severity
7.5HIGHNVD
EPSS
0.4%
top 41.16%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
BusyboxDebian BusyboxCanonical Ubuntu Linux
Timeline
PublishedJan 9
Latest updateMay 14

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶debiandebian/busybox< busybox 1:1.30.1-2 (bookworm)
▶Debianbusybox/busybox< 1:1.30.1-2+3
▶Ubuntubusybox/busybox< 1:1.21.0-1ubuntu1.4+2
▶NVDbusybox/busybox1.30.0

Also affects: Ubuntu Linux 14.04, 16.04, 18.04, 18.10

Patches

Patch: git.busybox.net ↗Patch: git.busybox.net ↗

🔴Vulnerability Details

3
GHSA
GHSA-h49r-cwwr-2hv6: An issue was discovered in BusyBox through 1↗2022-05-14
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OSV
busybox vulnerabilities↗2019-04-03
▶
OSV
CVE-2019-5747: An issue was discovered in BusyBox through 1↗2019-01-09
▶

📋Vendor Advisories

3
Ubuntu
BusyBox vulnerabilities↗2019-04-03
▶
Red Hat
busybox: Out of bounds read in udhcp components resulting in information disclosure↗2019-01-09
▶
Debian
CVE-2019-5747: busybox - An issue was discovered in BusyBox through 1.30.0. An out of bounds read in udhc...↗2019
▶

💬Community

2
Bugzilla
CVE-2019-5747 busybox: Out of bounds read in udhcp components resulting in information disclosure↗2019-01-17
▶
Bugzilla
CVE-2019-5747 busybox: Out of bounds read in udhcp components resulting in information disclosure [fedora-all]↗2019-01-17
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