CVE-2018-7186 — Out-of-bounds Write in Leptonica

CWE-787 — Out-of-bounds Write10 documents6 sources
Severity
9.8CRITICALNVD
OSV3.3
EPSS
3.1%
top 13.14%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LeptonicaDebian LeptonlibDebian Linux
Timeline
PublishedFeb 16
Latest updateMay 13

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:HExploitability: 3.9 | Impact: 5.9

Affected Packages2 packages

▶NVDleptonica/leptonica< 1.75.3
▶debiandebian/leptonlib< leptonlib 1.75.3-2 (bookworm)

Also affects: Debian Linux 7.0

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-hx3c-v527-xcjq: Leptonica before 1↗2022-05-13
▶
OSV
leptonlib vulnerabilities↗2021-03-15
▶
OSV
CVE-2018-7186: Leptonica before 1↗2018-02-16
▶

📋Vendor Advisories

2
Ubuntu
Leptonica vulnerabilities↗2021-03-15
▶
Debian
CVE-2018-7186: leptonlib - Leptonica before 1.75.3 does not limit the number of characters in a %s format a...↗2018
▶

💬Community

4
Bugzilla
CVE-2018-7186 leptonica: Stack-based buffer overflows in gplotRead() and ptaReadStream() when parsing crafted files can lead to denial of service↗2018-02-16
▶
Bugzilla
CVE-2018-3836 CVE-2018-7186 leptonica: various flaws [epel-all]↗2018-02-05
▶
Bugzilla
CVE-2018-3836 CVE-2018-7186 mingw-leptonica: various flaws [fedora-all]↗2018-02-05
▶
Bugzilla
CVE-2018-3836 CVE-2018-7186 leptonica: various flaws [fedora-all]↗2018-02-05
▶