Vulnerability Details : CVE-2018-20532
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.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2018-20532
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
- cpe:2.3:a:opensuse:libsolv:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-20532
0.31%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 70 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-20532
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2018-20532
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-20532
-
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00057.html
[security-announce] openSUSE-SU-2019:1927-1: moderate: Security update f
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https://access.redhat.com/errata/RHSA-2019:2290
RHSA-2019:2290 - Security Advisory - Red Hat Customer Portal
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https://usn.ubuntu.com/3916-1/
USN-3916-1: libsolv vulnerabilities | Ubuntu security noticesThird Party Advisory
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https://github.com/openSUSE/libsolv/pull/291
Fix: memory leaks, memory access, non used values by jrohel · Pull Request #291 · openSUSE/libsolv · GitHubPatch;Third Party Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=1652605
1652605 – CVE-2018-20532 libsolv: NULL pointer dereference in function testcase_read [rhel-8]Exploit;Issue Tracking
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