CVE-2018-20534

libsolv: illegal address access in pool_whatprovides in src/pool.h

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

There is an illegal address access at ext/testcase.c in libsolv.a in libsolv through 0.7.2 that will cause a denial of service. NOTE: third parties dispute this issue stating that the issue affects the test suite and not the underlying library. It cannot be exploited in any real-world application

** EN DISPUTA ** Hay un acceso a direcciones ilegal en ext/testcase.c en libsolv.a en libsolv hasta la versión 0.7.2 que provocará una denegación de servicio (DoS). NOTA: terceros disputan este problema afirmando que afecta al conjunto de pruebas y no a la librería subyacente. No puede ser explotado en ninguna aplicación real.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-12-27 CVE Reserved
2018-12-28 CVE Published
2024-05-20 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-125: Out-of-bounds Read

CAPEC

References (9)

URL	Tag	Source
https://bugzilla.suse.com/show_bug.cgi?id=1120631	Issue Tracking

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=1652604	2024-08-05

URL	Date	SRC
https://github.com/openSUSE/libsolv/pull/291	2024-05-17

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00057.html	2024-05-17
https://access.redhat.com/errata/RHSA-2019:2290	2024-05-17
https://access.redhat.com/errata/RHSA-2019:3583	2024-05-17
https://usn.ubuntu.com/3916-1	2024-05-17
https://access.redhat.com/security/cve/CVE-2018-20534	2019-11-05
https://bugzilla.redhat.com/show_bug.cgi?id=1665538	2019-11-05

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Opensuse Search vendor "Opensuse"		Libsolv Search vendor "Opensuse" for product "Libsolv"				<= 0.7.2 Search vendor "Opensuse" for product "Libsolv" and version " <= 0.7.2"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.10"		-		Affected