In the ffghtb function in NASA CFITSIO 3.42, specially crafted images parsed via the library can cause a stack-based buffer overflow overwr…

Published 8 y ago 2018-04-16 · modified 4 mo ago 2026-06-17 · JSON

CVSS

8.8

v3.0 · CNA

CISA KEV

not known exploited

EPSS

3.6%

percentile 90%

Public exploits

none known

In the ffghtb function 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.

Exploit prediction (EPSS)

3.64% probability of exploitation in the next 30 days, higher than 90% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
CNA	3.0	8.8	`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`
NVD	3.1	8.8	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`
CNA	3.0	8.8	`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`
NVD	2.0	6.8	`AV:N/AC:M/Au:N/C:P/I:P/A:P`

Affected products

Talos NASA CFITSIO

Classification

Weakness

CWE-787 Out-of-bounds Write

References

lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/K46I2MFPCEOGC5LLDXZSWPB3 · vendor-advisory, x_refsource_FEDORA, x_transferred
security.gentoo.org /glsa/202101-24 · vendor-advisory, x_refsource_GENTOO, x_transferred
talosintelligence.com /vulnerability_reports/TALOS-2018-0531 · x_refsource_MISC, x_transferred

Sources

CVE List: CVE-2018-3849
NVD: CVE-2018-3849

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