Bug 2234946 (CVE-2020-21686) - CVE-2020-21686 nasm: stack-use-after-scope in expand_mmac_params() in preproc.c
Summary: CVE-2020-21686 nasm: stack-use-after-scope in expand_mmac_params() in preproc.c
Keywords:
Status: NEW
Alias: CVE-2020-21686
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2234962 2234965 2234966
Blocks: 2234904
TreeView+ depends on / blocked
 
Reported: 2023-08-25 18:47 UTC by Guilherme de Almeida Suckevicz
Modified: 2023-09-27 15:20 UTC (History)
2 users (show)

Fixed In Version: nasm 2.15.04
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Description Guilherme de Almeida Suckevicz 2023-08-25 18:47:20 UTC 
A stack-use-after-scope issue discovered in expand_mmac_params function in preproc.c in nasm before 2.15.04 allows remote attackers to cause a denial of service via crafted asm file.

Reference:
https://bugzilla.nasm.us/show_bug.cgi?id=3392643
Comment 1 Guilherme de Almeida Suckevicz 2023-08-25 19:09:38 UTC 
Created nasm tracking bugs for this issue:

Affects: fedora-all [bug 2234962]
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