Buffer overflow in Nasa Cfitsio
CVE-2018-3846
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.030 (86.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.031 · newest: 0.030 · change: -0.001
Affected products
- Nasa Cfitsio — versions 3.42
- Talos Nasa Cfitsio — versions NASA CFITSIO 3.42
- Fedoraproject Fedora — versions 28
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202101-24 (vendor-advisory, Third Party Advisory)
- www.talosintelligence.com/vulnerability_reports/TALOS-2018-0529 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-3846?
- CVE-2018-3846 is a high-severity vulnerability in Nasa Cfitsio, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2018-04-16.
- How severe is CVE-2018-3846?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2018-3846 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.