6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.7 Medium
AI Score
Confidence
High
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.005 Low
EPSS
Percentile
76.2%
Issue Overview:
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-2018-20534)
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.(CVE-2018-20532)
There is a NULL pointer dereference at ext/testcase.c (function testcase_str2dep_complex) in libsolvext.a in libsolv through 0.7.2 that will cause a denial of service.(CVE-2018-20533)
Affected Packages:
libsolv
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update libsolv to update your system.
New Packages:
aarch64:
libsolv-0.6.34-4.amzn2.aarch64
libsolv-devel-0.6.34-4.amzn2.aarch64
libsolv-tools-0.6.34-4.amzn2.aarch64
libsolv-demo-0.6.34-4.amzn2.aarch64
python2-solv-0.6.34-4.amzn2.aarch64
libsolv-debuginfo-0.6.34-4.amzn2.aarch64
i686:
libsolv-0.6.34-4.amzn2.i686
libsolv-devel-0.6.34-4.amzn2.i686
libsolv-tools-0.6.34-4.amzn2.i686
libsolv-demo-0.6.34-4.amzn2.i686
python2-solv-0.6.34-4.amzn2.i686
libsolv-debuginfo-0.6.34-4.amzn2.i686
src:
libsolv-0.6.34-4.amzn2.src
x86_64:
libsolv-0.6.34-4.amzn2.x86_64
libsolv-devel-0.6.34-4.amzn2.x86_64
libsolv-tools-0.6.34-4.amzn2.x86_64
libsolv-demo-0.6.34-4.amzn2.x86_64
python2-solv-0.6.34-4.amzn2.x86_64
libsolv-debuginfo-0.6.34-4.amzn2.x86_64
Red Hat: CVE-2018-20532, CVE-2018-20533, CVE-2018-20534
Mitre: CVE-2018-20532, CVE-2018-20533, CVE-2018-20534
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 2 | aarch64 | libsolv | < 0.6.34-4.amzn2 | libsolv-0.6.34-4.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | libsolv-devel | < 0.6.34-4.amzn2 | libsolv-devel-0.6.34-4.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | libsolv-tools | < 0.6.34-4.amzn2 | libsolv-tools-0.6.34-4.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | libsolv-demo | < 0.6.34-4.amzn2 | libsolv-demo-0.6.34-4.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | python2-solv | < 0.6.34-4.amzn2 | python2-solv-0.6.34-4.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | libsolv-debuginfo | < 0.6.34-4.amzn2 | libsolv-debuginfo-0.6.34-4.amzn2.aarch64.rpm |
Amazon Linux | 2 | i686 | libsolv | < 0.6.34-4.amzn2 | libsolv-0.6.34-4.amzn2.i686.rpm |
Amazon Linux | 2 | i686 | libsolv-devel | < 0.6.34-4.amzn2 | libsolv-devel-0.6.34-4.amzn2.i686.rpm |
Amazon Linux | 2 | i686 | libsolv-tools | < 0.6.34-4.amzn2 | libsolv-tools-0.6.34-4.amzn2.i686.rpm |
Amazon Linux | 2 | i686 | libsolv-demo | < 0.6.34-4.amzn2 | libsolv-demo-0.6.34-4.amzn2.i686.rpm |
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.7 Medium
AI Score
Confidence
High
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.005 Low
EPSS
Percentile
76.2%