Bug 2035084 (CVE-2021-45256)

Summary: CVE-2021-45256 nasm: Null pointer dereference via asm/preproc.c
Product: [Other] Security Response Reporter: Pedro Sampaio <psampaio>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: dominik, java-sig-commits, mizdebsk, nickc, pbonzini
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A null-pointer dereference flaw was found in nasm's preproc.c. An attacker with local network access could pass specially crafted unknown input causing an application to halt or crash, leading to a denial of service.
Story Points: ---
Clone Of: Environment:
Last Closed: 2022-01-07 09:11:42 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 2035086    
Bug Blocks: 2035091    

Description Pedro Sampaio 2021-12-22 20:30:49 UTC
A Null Pointer Dereference vulnerability existfs in nasm 2.16rc0 via asm/preproc.c.

References:

https://bugzilla.nasm.us/show_bug.cgi?id=3392789

Comment 1 Pedro Sampaio 2021-12-22 20:31:02 UTC
Created nasm tracking bugs for this issue:

Affects: fedora-all [bug 2035086]

Comment 2 Product Security DevOps Team 2022-01-07 09:11:40 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-2021-45256