Bug 1198092 – VUL-0: CVE-2022-28391: busybox: arbitrary code execution if netstat is used to print a DNS PTR record's value to a VT compatible terminal

Bug 1198092 - (CVE-2022-28391) VUL-0: CVE-2022-28391: busybox: arbitrary code execution if netstat is used to print a DNS PTR record's value to a VT compatible terminal

(CVE-2022-28391)
Summary:	VUL-0: CVE-2022-28391: busybox: arbitrary code execution if netstat is used t...

Status:	NEW

Classification:	Novell Products
Product:	SUSE Security Incidents
Classification:	Novell Products
Component:	Incidents
Version:	unspecified
Hardware:	Other Other

Priority:	P3 - Medium Severity: Major
Target Milestone:	---
Assigned To:	Radoslav Kolev
QA Contact:	Security Team bot

URL:	https://smash.suse.de/issue/327985/
Whiteboard:	CVSSv3.1:SUSE:CVE-2022-28391:7.5:(AV:...
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Reported:	2022-04-05 13:06 UTC by Robert Frohl
Modified:	2022-11-04 11:00 UTC (History)
CC List:	8 users (show)

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Found By:	Security Response Team
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Blocker:	---
Marketing QA Status:	---
IT Deployment:	---

Flags:	stoyan.manolov: needinfo? (radoslav.kolev)

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Description Robert Frohl 2022-04-05 13:06:19 UTC

CVE-2022-28391

BusyBox through 1.35.0 allows remote attackers to execute arbitrary code if
netstat is used to print a DNS PTR record's value to a VT compatible terminal.
Alternatively, the attacker could choose to change the terminal's colors.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-28391
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28391
https://git.alpinelinux.org/aports/plain/main/busybox/0002-nslookup-sanitize-all-printed-strings-with-printable.patch
https://gitlab.alpinelinux.org/alpine/aports/-/issues/13661
https://git.alpinelinux.org/aports/plain/main/busybox/0001-libbb-sockaddr2str-ensure-only-printable-characters-.patch

Comment 1 Robert Frohl 2022-04-05 13:23:11 UTC

tracking as affected, based on busybox.SuSE.config/busybox.config:

- SUSE:SLE-11:Update/busybox
- SUSE:SLE-12:Update/busybox
- SUSE:SLE-15:Update/busybox
- SUSE:SLE-15-SP4:Update/busybox
- openSUSE:Factory/busybox

Comment 3 Radoslav Kolev 2022-07-19 16:02:29 UTC

I investigated this further, and the problem seems to only be present when busybox is build against musl. At least I couldn't reproduce the issue with our busybox package in carwos, based on SLE15-SP2. With the exact same DNS server config the issue is reproducible on Alpine Linux, which uses musl.