Bug 1883529 (CVE-2021-28211) - CVE-2021-28211 edk2: possible heap corruption with LzmaUefiDecompressGetInfo
Summary: CVE-2021-28211 edk2: possible heap corruption with LzmaUefiDecompressGetInfo
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-28211
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1892318 1899495 1899496 1911022 1952953
Blocks: 1883558
TreeView+ depends on / blocked
 
Reported: 2020-09-29 13:42 UTC by Guilherme de Almeida Suckevicz
Modified: 2022-04-17 21:01 UTC (History)
11 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2021-06-29 16:40:30 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:2591 0 None None None 2021-06-29 16:05:47 UTC
TianoCore 1816 0 None None None 2020-10-01 08:00:41 UTC

Description Guilherme de Almeida Suckevicz 2020-09-29 13:42:45 UTC 
A flaw was found in edk2 in the decompression process of UEFI images in the LzmaUefiDecompressGetInfo() function. A crafted LZMA header can lead to a heap-based buffer overflow.

Reference:
https://bugzilla.tianocore.org/show_bug.cgi?id=1816
Comment 1 Laszlo Ersek 2020-10-01 08:15:15 UTC 
Upstream patch is ready and has been reviewed:

https://bugzilla.tianocore.org/show_bug.cgi?id=1816#c10
https://bugzilla.tianocore.org/show_bug.cgi?id=1816#c12
Comment 6 Riccardo Schirone 2020-11-19 12:13:33 UTC 
Created edk2 tracking bugs for this issue:

Affects: epel-all [bug 1899496]
Affects: fedora-all [bug 1899495]
Comment 7 Laszlo Ersek 2020-11-21 02:06:30 UTC 
Upstream fix merged as commit e7bd0dd26db7, via <https://github.com/tianocore/edk2/pull/1138>.
Comment 10 errata-xmlrpc 2021-06-29 16:05:34 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:2591 https://access.redhat.com/errata/RHSA-2021:2591
Comment 11 Product Security DevOps Team 2021-06-29 16:40:30 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-28211
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