CVE-2018-7186
9.8
CRITICAL · CVSS 3.0 · EPSS 3.4% (pctl 89)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.4% — more likely to be exploited than 89% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2018-02-16 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| debian | debian linux |
| leptonica | leptonica |
References
- https://bugs.debian.org/890548
- https://github.com/DanBloomberg/leptonica/commit/ee301cb2029db8a6289c5295daa42bba7715e99a
- https://lists.debian.org/debian-lts-announce/2018/03/msg00005.html
- https://lists.debian.org/debian-lts/2018/02/msg00054.html
- https://security.gentoo.org/glsa/202312-01
- https://bugs.debian.org/890548
- https://github.com/DanBloomberg/leptonica/commit/ee301cb2029db8a6289c5295daa42bba7715e99a
- https://lists.debian.org/debian-lts-announce/2018/03/msg00005.html
- https://lists.debian.org/debian-lts/2018/02/msg00054.html
- https://security.gentoo.org/glsa/202312-01
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