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 (stack-based buffer overflow) or possibly have unspecified other impact via a long…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.40%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.40% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- leptonica/leptonica · debian/debian linux
- Source
- cve@mitre.org
References
- https://bugs.debian.org/890548Third Party Advisory
- https://github.com/DanBloomberg/leptonica/commit/ee301cb2029db8a6289c5295daa42bba7715e99aPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/03/msg00005.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts/2018/02/msg00054.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202312-01
- https://bugs.debian.org/890548Third Party Advisory
- https://github.com/DanBloomberg/leptonica/commit/ee301cb2029db8a6289c5295daa42bba7715e99aPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/03/msg00005.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts/2018/02/msg00054.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202312-01
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.