CVE-2019-20387

Name: CVE-2019-20387
Creator: NVD / NIST
Published: 2020-01-21T23:15:13.443+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.34%

Last modified Jun 17, 2026

CVE-2019-20387 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. repodata_schema2id in repodata.c in libsolv before 0.7.6 has a heap-based buffer over-read via a last schema whose length is less than the length of the input schema.. EPSS estimates a 2.34% chance of exploitation in the next 30 days.

Description

repodata_schema2id in repodata.c in libsolv before 0.7.6 has a heap-based buffer over-read via a last schema whose length is less than the length of the input schema.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

2.34%

81.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Opensuse	Libsolv	< 0.7.6
Debian	Debian Linux	8.0

References

https://github.com/openSUSE/libsolv/commit/fdb9c9c03508990e4583046b590c30d958f272daPatch, Third Party Advisory
https://github.com/openSUSE/libsolv/compare/0.7.5...0.7.6Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00034.htmlMailing List, Third Party Advisory
https://github.com/openSUSE/libsolv/commit/fdb9c9c03508990e4583046b590c30d958f272daPatch, Third Party Advisory
https://github.com/openSUSE/libsolv/compare/0.7.5...0.7.6Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00034.htmlMailing List, Third Party Advisory

Timeline

Published: Jan 21, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-20387?

repodata_schema2id in repodata.c in libsolv before 0.7.6 has a heap-based buffer over-read via a last schema whose length is less than the length of the input schema.

How severe is CVE-2019-20387?

CVE-2019-20387 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.34% probability of exploitation in the next 30 days.

How do I fix CVE-2019-20387?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-20387?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST