SUSE update for python-lxml
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2018-19787 CVE-2020-27783 CVE-2021-28957 CVE-2021-43818 |
| CWE-ID | CWE-79 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
SUSE OpenStack Cloud Crowbar Operating systems & Components / Operating system HPE Helion Openstack Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system SUSE OpenStack Cloud Operating systems & Components / Operating system python-lxml-debugsource Operating systems & Components / Operating system package or component python-lxml-debuginfo Operating systems & Components / Operating system package or component python-lxml Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Cross-site scripting
EUVDB-ID: #VU16583
Risk: Low
CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2018-19787
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to lxml/html/clean.py in the lxml.html.clean module does not remove javascript. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
MitigationUpdate the affected package python-lxml to the latest version.
Vulnerable software versionsSUSE OpenStack Cloud Crowbar: 8
HPE Helion Openstack: 8
SUSE Linux Enterprise Server: 12-SP5
SUSE OpenStack Cloud: 8
python-lxml-debugsource: before 3.6.1-8.5.1
python-lxml-debuginfo: before 3.6.1-8.5.1
python-lxml: before 3.6.1-8.5.1
External linkshttp://www.suse.com/support/update/announcement/2022/suse-su-20220895-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
2) Cross-site scripting
EUVDB-ID: #VU48793
Risk: Medium
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-27783
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data within lxml Python clean module. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
MitigationUpdate the affected package python-lxml to the latest version.
Vulnerable software versionsSUSE OpenStack Cloud Crowbar: 8
HPE Helion Openstack: 8
SUSE Linux Enterprise Server: 12-SP5
SUSE OpenStack Cloud: 8
python-lxml-debugsource: before 3.6.1-8.5.1
python-lxml-debuginfo: before 3.6.1-8.5.1
python-lxml: before 3.6.1-8.5.1
External linkshttp://www.suse.com/support/update/announcement/2022/suse-su-20220895-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Cross-site scripting
EUVDB-ID: #VU51777
Risk: Low
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-28957
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. When disabling the safe_attrs_only and forms arguments, the Cleaner class does not remove the formaction attribute allowing for JS to bypass the sanitizer. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
MitigationUpdate the affected package python-lxml to the latest version.
Vulnerable software versionsSUSE OpenStack Cloud Crowbar: 8
HPE Helion Openstack: 8
SUSE Linux Enterprise Server: 12-SP5
SUSE OpenStack Cloud: 8
python-lxml-debugsource: before 3.6.1-8.5.1
python-lxml-debuginfo: before 3.6.1-8.5.1
python-lxml: before 3.6.1-8.5.1
External linkshttp://www.suse.com/support/update/announcement/2022/suse-su-20220895-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Cross-site scripting
EUVDB-ID: #VU59660
Risk: Low
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-43818
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data within the HTML Cleaner in lxml.html. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
MitigationUpdate the affected package python-lxml to the latest version.
Vulnerable software versionsSUSE OpenStack Cloud Crowbar: 8
HPE Helion Openstack: 8
SUSE Linux Enterprise Server: 12-SP5
SUSE OpenStack Cloud: 8
python-lxml-debugsource: before 3.6.1-8.5.1
python-lxml-debuginfo: before 3.6.1-8.5.1
python-lxml: before 3.6.1-8.5.1
External linkshttp://www.suse.com/support/update/announcement/2022/suse-su-20220895-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
