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Fencer Vulns
high 8.1

CVE-2019-19847 json

Libspiro through 20190731 has a stack-based buffer overflow in the spiro_to_bpath0() function in spiro.c.

published 2019-12-17 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-9443

cvss
8.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

Libspiro through 20190731 has a stack-based buffer overflow in the spiro_to_bpath0() function in spiro.c.

Patch / fix

  • libspiro Debian 14, Debian 13, Debian 12 1:20200505-1

debian advisories DEBIAN-CVE-2019-19847

  • libspiro Alpine 3.24, Alpine 3.23, Alpine 3.22 +5 more 20200505-r0

alpine advisories ALPINE-CVE-2019-19847

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libspiro CBL-Mariner 2.0 20221101-1

azure linux advisories AZL-7273

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-19847 updated cvss 8.1

libspiro: stack-based off-by-one buffer overflow in spiro_to_bpath0() in spiro.c

  • Red Hat Enterprise Linux 6 libspiro Red Hat Enterprise Linux 7 libspiro Red Hat Enterprise Linux 8 libspiro
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.36% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/fontforge/libspiro/issues/21 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.