Bug 2160381 (CVE-2023-23456) - CVE-2023-23456 upx: heap-buffer-overflow in PackTmt::pack()
Summary: CVE-2023-23456 upx: heap-buffer-overflow in PackTmt::pack()
Alias: CVE-2023-23456
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 2160383 2160384
Blocks: 2154251
TreeView+ depends on / blocked
Reported: 2023-01-12 08:26 UTC by TEJ RATHI
Modified: 2023-01-14 04:30 UTC (History)
0 users

Fixed In Version:
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Doc Text:
A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file.
Clone Of:
Last Closed: 2023-01-14 04:30:55 UTC

Attachments (Terms of Use)

Description TEJ RATHI 2023-01-12 08:26:09 UTC
An assertion abort was found in upx MemBuffer::alloc() in mem.cpp, in version UPX 4.0.1. The flow allows attackers to cause a denial of service (abort) via a crafted file.


Comment 1 TEJ RATHI 2023-01-12 08:26:36 UTC
Created upx tracking bugs for this issue:

Affects: epel-all [bug 2160384]
Affects: fedora-all [bug 2160383]

Comment 2 Product Security DevOps Team 2023-01-14 04:30:53 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.

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