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Bug 1732714 (CVE-2019-14248)

Summary: CVE-2019-14248 nasm: NULL pointer dereference in asm/pragma.c leading to Segmentation fault
Product: [Other] Security Response Reporter: Marian Rehak <mrehak>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: dominik, fdc, i.gnatenko.brain, java-sig-commits, mizdebsk, nickc, pbonzini
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
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Story Points: ---
Clone Of: Environment:
Last Closed: 2019-07-26 13:18:19 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: 1732715    
Bug Blocks: 1732718    

Description Marian Rehak 2019-07-24 08:03:30 UTC
In libnasm.a in Netwide Assembler (NASM) 2.14.xx, asm/pragma.c allows a NULL pointer dereference in process_pragma, search_pragma_list, and nasm_set_limit when "%pragma limit" is mishandled.

Upstream Issue:

https://bugzilla.nasm.us/show_bug.cgi?id=3392576

Comment 1 Marian Rehak 2019-07-24 08:03:41 UTC
Created nasm tracking bugs for this issue:

Affects: fedora-all [bug 1732715]

Comment 2 Riccardo Schirone 2019-07-26 11:27:03 UTC
"%pragma limit" was introduced in NASM 2.14 with commit https://repo.or.cz/nasm.git/commit/987dc9c9dbe36601789aae4552a7c0ceb1ca0852 .

Comment 3 Riccardo Schirone 2019-07-26 11:29:07 UTC
Statement:

This issue did not affect the versions of nasm as shipped with Red Hat Enterprise Linux 5, 6, 7, and 8 as they did not include support for the pragma limit feature.

Comment 4 Product Security DevOps Team 2019-07-26 13:18:19 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-2019-14248