CVE-2018-3846: fedoraproject fedora Out-of-bounds Write
Vulnerability summary
CVE-2018-3846 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in fedoraproject fedora. EPSS estimates a 3.02% chance of exploitation in the next 30 days, higher than 87.2% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 1Timeline
- 16-04-2018PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
In the ffgphd and ffgtkn functions in NASA CFITSIO 3.42, specially crafted images parsed via the library can cause a stack-based buffer overflow overwriting arbitrary data. An attacker can deliver an FIT image to trigger this vulnerability and potentially gain code execution.
CVSS metrics
7 scores · 4 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVDNIST8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
3.02%
Chance of exploitation in the next 30 days
Percentile
87%
Versus all other CVEs
30-day change
-0.06 pp
From 3.07% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (talosintelligence.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian1 product
- cfitsio< 3.430-1
Fedoraproject1 product
- fedoraEOL28
Nasa1 product
- cfitsio3.42
Talos1 product
- nasa cfitsioNASA CFITSIO 3.42
Ubuntu1 product
- cfitsioAll versions (No fix recorded)
5 vendors · 5 products
References
6 links- www.talosintelligence.com/vulnerability_reports/TALOS-2018-0529X Refsource MISCExploitThird Party AdvisoryREPORT
