CVE-2019-8343: nasm netwide_assembler Use After Free
CVSS: 7.8v3.0HighModified
AliasesUBUNTU-CVE-2019-8343DEBIAN-CVE-2019-8343
Published 15-02-2019Last modified 16-09-2024
Vulnerability summary
CVE-2019-8343 is a high (CVSS 7.8) Use After Free vulnerability in nasm netwide_assembler. EPSS estimates a 1.14% chance of exploitation in the next 30 days, higher than 66.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.8/10
010
High · v3.0 (NVD)EPSS score
1.14%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 15-02-2019PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
In Netwide Assembler (NASM) 2.14.02, there is a use-after-free in paste_tokens in asm/preproc.c.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.14%
Chance of exploitation in the next 30 days
Percentile
66%
Versus all other CVEs
30-day change
0.00 pp
From 1.14% on 20-09-2026
20-09-202620-10-2026
EPSS score1.14%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugzilla.nasm.us)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian1 product
- nasmAll versions (No fix recorded)
Nasm1 product
- netwide_assembler2.14.02
Ubuntu1 product
- nasmAll versions (No fix recorded)
3 vendors · 3 products
References
5 links- security.gentoo.org/glsa/202312-09Vendor Advisory
