PT-2020-10413 · Opensuse+3 · Libsolv+3

Published 2020-01-21 · Updated 2023-01-31 · CVE-2019-20387

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions libsolv versions prior to 0.7.6

Description The issue is related to a heap-based buffer over-read in the repodata schema2id function in repodata.c. This occurs when the length of the last schema is less than the length of the input schema.

Recommendations For versions prior to 0.7.6, update to version 0.7.6 or later to resolve the issue.

Exploit

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CESA-2020_4508

CVE-2019-20387

DLA-2088-1

MGASA-2020-0117

RHSA-2020:4508

RHSA-2020_4508

SUSE-SU-2021:2145-1

SUSE-SU-2021:2180-1

SUSE-SU-2021_2145-1

SUSE-SU-2021_2180-1

Affected Products

Centos

Red Hat

Suse

Libsolv

References · 26

• 🔥 https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/PoC-testcase_read-2334 · Exploit
• https://github.com/openSUSE/libsolv/compare/0.7.5...0.7.6 · Patch
• https://github.com/openSUSE/libsolv/commit/fdb9c9c03508990e4583046b590c30d958f272da · Patch
• https://osv.dev/vulnerability/MGASA-2020-0117 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:2180-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-20387 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2020-0117.html · Security Note
• https://osv.dev/vulnerability/DLA-2088-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2020-4508.html · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-20387 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:2145-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-20387 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-20387 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-20387 · Security Note
• https://ubuntu.com/security/CVE-2019-20387 · Vendor Advisory