CVE-2018-7186

Description

Leptonica before 1.75.3 does not limit the number of characters in a %s format argument to fscanf or sscanf, which allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a long string, as demonstrated by the gplotRead and ptaReadStream functions.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.59% Top 20%
Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lists.debian.org/debian-lts-announce/2018/03/msg00005.html third party advisory mailing list
https://github.com/DanBloomberg/leptonica/commit/ee301cb2029db8a6289c5295daa42bba7715e99a third party advisory patch
https://bugs.debian.org/890548 third party advisory
https://lists.debian.org/debian-lts/2018/02/msg00054.html third party advisory mailing list
https://security.gentoo.org/glsa/202312-01 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-7186?
CVE-2018-7186 has been scored as a critical severity vulnerability.
How to fix CVE-2018-7186?
To fix CVE-2018-7186, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-7186 being actively exploited in the wild?
It is possible that CVE-2018-7186 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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