01 Record

CVE-2018-20534

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

UnratedPUBLISHEDCNA: mitre

CNA base scoreUnratedNo CNA CVSS vector

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02 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

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 2.23% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 82.5% of scored records. A rank, not a probability.
NVD base score: 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2018-12-28 03:00Z7 YR AGO

Last updated

2024-08-05 12:05Z2 YR AGO

Reserved

2018-12-27

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
CWE-125Out-of-bounds ReadBase

Data version

5.1

Document digest

3a607cf77c2e829a2ca2765e4ac7b19142604287874e1a68b0a73b4e305584b4

05 Affected products

VendorProductVersionsPlatforms

canonicalubuntu_linuxNot specified—

opensuselibsolvNot specified—

redhatenterprise_linuxNot specified—

06 References

bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1652604x_refsource_MISC
github.comhttps://github.com/openSUSE/libsolv/pull/291x_refsource_MISC
usn.ubuntu.comUSN-3916-1https://usn.ubuntu.com/3916-1/vendor-advisoryx_refsource_UBUNTU
bugzilla.suse.comhttps://bugzilla.suse.com/show_bug.cgi?id=1120631x_refsource_CONFIRM
access.redhat.comRHSA-2019:2290https://access.redhat.com/errata/RHSA-2019:2290vendor-advisoryx_refsource_REDHAT
lists.opensuse.orgopenSUSE-SU-2019:1927http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00057.htmlvendor-advisoryx_refsource_SUSE
access.redhat.comRHSA-2019:3583https://access.redhat.com/errata/RHSA-2019:3583vendor-advisoryx_refsource_REDHAT

07 Fixed in

Debian 12

libsolv
Fixed in 0.6.36-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

libsolv
Fixed in 0.6.36-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

libsolv
Fixed in 0.6.36-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

libsolv
Fixed in 0.6.11-1.1ubuntu0.1~esm1
Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

libsolv
Fixed in 0.6.30-1ubuntu0.1~esm1
Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.