Vulnerabilities
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CVE Vulnerabilities

CVE-2018-20532

NULL Pointer Dereference

Published: Dec 28, 2018 | Modified: Nov 21, 2024
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
3.3 LOW
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2018-20532
CWEhttps://cwe.mitre.org/data/definitions/476.html

There is a NULL pointer dereference at ext/testcase.c (function testcase_read) in libsolvext.a in libsolv through 0.7.2 that will cause a denial of service.

Weakness

The product dereferences a pointer that it expects to be valid but is NULL.

Affected Software

NameVendorStart VersionEnd Version
LibsolvOpensuse*0.7.2 (including)
Red Hat Enterprise Linux 7RedHatlibsolv-0:0.6.34-4.el7*
LibsolvUbuntubionic*
LibsolvUbuntucosmic*
LibsolvUbuntudevel*
LibsolvUbuntudisco*
LibsolvUbuntueoan*
LibsolvUbuntuesm-apps/bionic*
LibsolvUbuntuesm-apps/focal*
LibsolvUbuntuesm-apps/jammy*
LibsolvUbuntuesm-apps/xenial*
LibsolvUbuntufocal*
LibsolvUbuntugroovy*
LibsolvUbuntuhirsute*
LibsolvUbuntuimpish*
LibsolvUbuntujammy*
LibsolvUbuntukinetic*
LibsolvUbuntulunar*
LibsolvUbuntuupstream*
LibsolvUbuntuxenial*

Potential Mitigations

References

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