9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.012 Low
EPSS
Percentile
85.2%
Medium
Canonical Ubuntu
Yunho Kim discovered that libxml2 incorrectly handled certain error conditions. A remote attacker could exploit this with a crafted XML file to cause a denial of service, or possibly cause libxml2 to expose sensitive information. This issue only affected Ubuntu 14.04 ESM, and Ubuntu 16.04 ESM. (CVE-2017-8872)
Zhipeng Xie discovered that libxml2 incorrectly handled certain XML schemas. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 ESM, and Ubuntu 18.04 LTS. (CVE-2019-20388)
It was discovered that libxml2 incorrectly handled invalid UTF-8 input. A remote attacker could possibly exploit this with a crafted XML file to cause libxml2 to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 ESM, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2020-24977)
It was discovered that libxml2 incorrectly handled invalid UTF-8 input. A remote attacker could possibly exploit this with a crafted XML file to cause libxml2 to crash, resulting in a denial of service. (CVE-2021-3517)
It was discovered that libxml2 did not properly handle certain crafted XML files. A local attacker could exploit this with a crafted input to cause libxml2 to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-3516, CVE-2021-3518)
It was discovered that libxml2 incorrectly handled error states. A remote attacker could exploit this with a crafted XML file to cause libxml2 to crash, resulting in a denial of service. (CVE-2021-3537)
Sebastian Pipping discovered that libxml2 did not properly handle certain crafted XML files. A remote attacker could exploit this with a crafted XML file to cause libxml2 to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS, Ubuntu 20.10, and Ubuntu 21.04. (CVE-2021-3541)
CVEs contained in this USN include: CVE-2017-8872, CVE-2021-3516, CVE-2020-24977, CVE-2021-3541, CVE-2021-3537, CVE-2021-3517, CVE-2021-3518, CVE-2019-20388.
Severity is medium unless otherwise noted.
Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:
2021-07-08: Initial vulnerability report published.
CPE | Name | Operator | Version |
---|---|---|---|
bionic stemcells | lt | 1.13 | |
cflinuxfs3 | lt | 0.245.0 | |
cf deployment | lt | 16.16.0 |
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.012 Low
EPSS
Percentile
85.2%