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Fencer Intel
high 7.8

CVE-2018-8882 json

Netwide Assembler (NASM) 2.13.02rc2 has a stack-based buffer under-read in the function ieee_shr in asm/float.c via a large shift value.

published 8y ago modified 4mo ago also EUVD-2018-20490

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits
0
none known

Summary

Netwide Assembler (NASM) 2.13.02rc2 has a stack-based buffer under-read in the function ieee_shr in asm/float.c via a large shift value.

Patch / fix

  • nasm Debian 14, Debian 13, Debian 12 2.14-1

debian advisories DEBIAN-CVE-2018-8882

  • nasm SLE Module for Development Tools 15 SP2, SLE Module for Development Tools 15 SP1 2.14.02-3.4.1

suse advisories SUSE-SU-2020:1843-1

  • nasm openSUSE Leap 15.2 2.14.02-lp152.4.3.1
  • nasm openSUSE Leap 15.1 2.14.02-lp151.3.3.1

opensuse advisories openSUSE-SU-2020:0954-1openSUSE-SU-2020:0952-1

Is CVE-2018-8882 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-8882 updated cvss 3.3

nasm: Stack buffer underflow in function ieee_shr at source file asm/float.c

  • Red Hat Enterprise Linux 6 nasm, nasm-rdoff
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 7 nasm, nasm-rdoff
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux 8 nasm
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 5 nasm
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.