6.5
MEDIUM
CVE-2018-20534
Apache Libsolv Illegal Address Access Denial of Service Vulnerability
Description

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

INFO

Published Date :

Dec. 28, 2018, 4:29 p.m.

Last Modified :

Nov. 21, 2024, 4:01 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2018-20534 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Canonical ubuntu_linux
1 Opensuse libsolv

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-20534 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-20534 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00057.html
    Added Reference https://access.redhat.com/errata/RHSA-2019:2290
    Added Reference https://access.redhat.com/errata/RHSA-2019:3583
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1652604
    Added Reference https://bugzilla.suse.com/show_bug.cgi?id=1120631
    Added Reference https://github.com/openSUSE/libsolv/pull/291
    Added Reference https://usn.ubuntu.com/3916-1/
  • CVE Modified by [email protected]

    Aug. 05, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 17, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Apr. 11, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Mar. 21, 2024

    Action Type Old Value New Value
    Added Tag MITRE disputed
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Changed Description ** DISPUTED ** 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. 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
  • CVE Modified by [email protected]

    Nov. 06, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:3583 [No Types Assigned]
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-399 CWE-119 CWE-125 CWE-119
  • CVE Modified by [email protected]

    Aug. 18, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00057.html [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 06, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:2290 [No Types Assigned]
  • Modified Analysis by [email protected]

    Apr. 16, 2019

    Action Type Old Value New Value
    Changed Reference Type https://bugzilla.suse.com/show_bug.cgi?id=1120631 No Types Assigned https://bugzilla.suse.com/show_bug.cgi?id=1120631 Issue Tracking, Third Party Advisory
  • CVE Modified by [email protected]

    Apr. 09, 2019

    Action Type Old Value New Value
    Changed Description There is an illegal address access at src/pool.h (function pool_whatprovides) in libsolv.a in libsolv through 0.7.2 that will cause a denial of service. ** DISPUTED ** 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.
    Added Reference https://bugzilla.suse.com/show_bug.cgi?id=1120631 [No Types Assigned]
  • Modified Analysis by [email protected]

    Apr. 03, 2019

    Action Type Old Value New Value
    Changed Reference Type https://usn.ubuntu.com/3916-1/ No Types Assigned https://usn.ubuntu.com/3916-1/ Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 22, 2019

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/3916-1/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Jan. 06, 2019

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    Changed Reference Type https://github.com/openSUSE/libsolv/pull/291 No Types Assigned https://github.com/openSUSE/libsolv/pull/291 Patch, Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1652604 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1652604 Exploit, Issue Tracking, Third Party Advisory
    Added CWE CWE-399
    Added CPE Configuration OR *cpe:2.3:a:opensuse:libsolv:*:*:*:*:*:*:*:* versions up to (including) 0.7.2
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.35 }} -0.11%

score

0.71541

percentile

CVSS30 - Vulnerability Scoring System
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Attack Complexity
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Scope
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