Critical severity · published Feb 16, 2018
CVE-2018-7186
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…
9.8
CVSS
3.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.4% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
7.0 · source: NVD
LE
Leptonica · Leptonica
before 1.75.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-7186
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-7186
Third Party Advisory
https://bugs.debian.org/890548
Patch
https://github.com/DanBloomberg/leptonica/commit/ee301cb2029db8a6289c5295daa42bba7715e99a
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
security.gentoo.org
https://security.gentoo.org/glsa/202312-01
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