What’s Vulnerable › Vulnerabilities

CVE-2017-17820

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-12-21 · updated 2026-06-17
• Weakness: CWE-416

Description

In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in pp_list_one_macro in asm/preproc.c that will lead to a remote denial of service attack, related to mishandling of operand-type errors.

Affected products

• Canonical Ubuntu Linux: 14.04
• NASM Netwide Assember: 2.14-rc0

References

• https://bugzilla.nasm.us/show_bug.cgi?id=3392433
• https://usn.ubuntu.com/3694-1/
• https://bugzilla.nasm.us/show_bug.cgi?id=3392433
• https://usn.ubuntu.com/3694-1/

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