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TI-2018-11848 Aliases CVE-2018-16517GHSA-v4mp-339h-9w7f

asm/labels.c in Netwide Assembler (NASM) is prone to NULL Pointer Dereference, which…

Priority LOW 32CWE-476Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Will not fix Red Hat: no fix planned

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

asm/labels.c in Netwide Assembler (NASM) is prone to NULL Pointer Dereference, which allows the attacker to cause a denial of service via a crafted file.

Why it matters now

EPSS 0.04504 91st percentileScored 2026-11-07
Public exploit Yes 4 exploit referencesTagged by NVD and the CNA
Fix Will not fix Red Hat: no fix planned

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 16

CPEVersionsRoleVendor
cpe:2.3:a:nasm:netwide_assembler:*:*:*:*:*:*:*:*up to 2.13.03VulnerableNASM
cpe:2.3:a:nasm:netwide_assembler:2.14:rc15:*:*:*:*:*:*2.14 rc15VulnerableNASM
cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc1:*:*:*:*:*:*2.14.0 rc1VulnerableNASM
cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc10:*:*:*:*:*:*2.14.0 rc10VulnerableNASM
cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc11:*:*:*:*:*:*2.14.0 rc11VulnerableNASM
cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc12:*:*:*:*:*:*2.14.0 rc12VulnerableNASM
cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc13:*:*:*:*:*:*2.14.0 rc13VulnerableNASM
cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc14:*:*:*:*:*:*2.14.0 rc14VulnerableNASM
cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc2:*:*:*:*:*:*2.14.0 rc2VulnerableNASM
cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc3:*:*:*:*:*:*2.14.0 rc3VulnerableNASM
  • cpe:2.3:a:nasm:netwide_assembler:*:*:*:*:*:*:*:* Versions up to 2.13.03 Vulnerable ·NASM
  • cpe:2.3:a:nasm:netwide_assembler:2.14:rc15:*:*:*:*:*:* Versions 2.14 rc15 Vulnerable ·NASM
  • cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc1:*:*:*:*:*:* Versions 2.14.0 rc1 Vulnerable ·NASM
  • cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc10:*:*:*:*:*:* Versions 2.14.0 rc10 Vulnerable ·NASM
  • cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc11:*:*:*:*:*:* Versions 2.14.0 rc11 Vulnerable ·NASM
  • cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc12:*:*:*:*:*:* Versions 2.14.0 rc12 Vulnerable ·NASM
  • cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc13:*:*:*:*:*:* Versions 2.14.0 rc13 Vulnerable ·NASM
  • cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc14:*:*:*:*:*:* Versions 2.14.0 rc14 Vulnerable ·NASM
  • cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc2:*:*:*:*:*:* Versions 2.14.0 rc2 Vulnerable ·NASM
  • cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc3:*:*:*:*:*:* Versions 2.14.0 rc3 Vulnerable ·NASM
Show 6 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc4:*:*:*:*:*:*2.14.0 rc4VulnerableNASM
cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc5:*:*:*:*:*:*2.14.0 rc5VulnerableNASM
cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc6:*:*:*:*:*:*2.14.0 rc6VulnerableNASM
cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc7:*:*:*:*:*:*2.14.0 rc7VulnerableNASM
cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc8:*:*:*:*:*:*2.14.0 rc8VulnerableNASM
cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc9:*:*:*:*:*:*2.14.0 rc9VulnerableNASM
  • cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc4:*:*:*:*:*:* Versions 2.14.0 rc4 Vulnerable ·NASM
  • cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc5:*:*:*:*:*:* Versions 2.14.0 rc5 Vulnerable ·NASM
  • cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc6:*:*:*:*:*:* Versions 2.14.0 rc6 Vulnerable ·NASM
  • cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc7:*:*:*:*:*:* Versions 2.14.0 rc7 Vulnerable ·NASM
  • cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc8:*:*:*:*:*:* Versions 2.14.0 rc8 Vulnerable ·NASM
  • cpe:2.3:a:nasm:netwide_assembler:2.14.0:rc9:*:*:*:*:*:* Versions 2.14.0 rc9 Vulnerable ·NASM

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 8AffectedNo fix planned: Will not fix
Not affected: 3 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-16517
  2. 2026-10-03 Alias added: GHSA-v4mp-339h-9w7f

References

Exploit 4

Advisory 2

  • TI-2026-05320 Use after free in NASM CVSS 3.1CRITICAL 9.6
  • TI-2026-05321 Out-of-bounds write in NASM CVSS 3.1HIGH 7.5
  • TI-2026-05319 Out-of-bounds write in NASM CVSS 3.1HIGH 7.5
  • TI-2004-01165 Buffer overflow in the error function in preproc.c for NASM 0.98.38 1.2 allows attackers… CVSS 2.0HIGH 10.0
  • TI-2023-20017 Stack-based buffer over-read in disasm in nasm 2.16 allows attackers to cause a denial of service (crash). CVSS 3.1MEDIUM 5.5
  • TI-2023-20016 Stack-based buffer over-read in function disasm in nasm 2.16 allows attackers to cause a denial of service. CVSS 3.1MEDIUM 5.5
See all 74 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences