2023881 – (CVE-2021-42374) CVE-2021-42374 busybox: out-of-bounds read in unlzma applet leads to information leak and denial of service when crafted LZMA-compressed input is decompressed

Bug 2023881 (CVE-2021-42374) - CVE-2021-42374 busybox: out-of-bounds read in unlzma applet leads to information leak and denial of service when crafted LZMA-compressed input is decompressed

Summary: CVE-2021-42374 busybox: out-of-bounds read in unlzma applet leads to informat...

Keywords:
Status:	NEW
Alias:	CVE-2021-42374
Product:	Security Response
Classification:	Other
Component:	vulnerability
Sub Component:
Version:	unspecified
Hardware:	All
OS:	Linux
Priority:	medium
Severity:	medium
Target Milestone:	---
Assignee:	Nobody
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:	2023882
Blocks:	2023944
TreeView+	depends on / blocked

Reported:	2021-11-16 18:12 UTC by Guilherme de Almeida Suckevicz
Modified:	2023-07-07 08:32 UTC (History)
CC List:	6 users (show)
Fixed In Version:	BusyBox 1.34.0
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments	(Terms of Use)

Description Guilherme de Almeida Suckevicz 2021-11-16 18:12:08 UTC

An out-of-bounds heap read in unlzma leads to information leak and denial of service when crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that internally supports LZMA compression.

Reference:
https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/

Comment 1 Guilherme de Almeida Suckevicz 2021-11-16 18:12:26 UTC

Created busybox tracking bugs for this issue:

Affects: fedora-all [bug 2023882]

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