CVE-2018-7186

moderate-risk
Published 2018-02-16

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.

Do I need to act?

~
3.1% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: ee301cb2029db8a6289c5295daa42bba7715e99a
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (2)

Leptonica

Affected Vendors

Debian Leptonica

References (10)

Third Party Advisory https://bugs.debian.org/890548
Patch https://github.com/DanBloomberg/leptonica/commit/ee301cb2029db8a6289c5295daa42bb...
Mailing List https://lists.debian.org/debian-lts-announce/2018/03/msg00005.html
Mailing List https://lists.debian.org/debian-lts/2018/02/msg00054.html
https://security.gentoo.org/glsa/202312-01
Third Party Advisory https://bugs.debian.org/890548
Patch https://github.com/DanBloomberg/leptonica/commit/ee301cb2029db8a6289c5295daa42bb...
Mailing List https://lists.debian.org/debian-lts-announce/2018/03/msg00005.html
Mailing List https://lists.debian.org/debian-lts/2018/02/msg00054.html
https://security.gentoo.org/glsa/202312-01
45
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 6/34 · Minimal
Exposure 7/34 · Low