SUSE update for libxml2
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2021-3516 CVE-2021-3517 CVE-2021-3518 |
| CWE-ID | CWE-416 CWE-787 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
SUSE Linux Enterprise Module for Python2 Operating systems & Components / Operating system SUSE MicroOS Operating systems & Components / Operating system SUSE Linux Enterprise Module for Basesystem Operating systems & Components / Operating system libxml2-2-32bit-debuginfo Operating systems & Components / Operating system package or component libxml2-2-32bit Operating systems & Components / Operating system package or component python3-libxml2-python-debuginfo Operating systems & Components / Operating system package or component python3-libxml2-python Operating systems & Components / Operating system package or component libxml2-devel Operating systems & Components / Operating system package or component python2-libxml2-python-debuginfo Operating systems & Components / Operating system package or component python2-libxml2-python Operating systems & Components / Operating system package or component python-libxml2-python-debugsource Operating systems & Components / Operating system package or component libxml2-tools-debuginfo Operating systems & Components / Operating system package or component libxml2-tools Operating systems & Components / Operating system package or component libxml2-debugsource Operating systems & Components / Operating system package or component libxml2-2-debuginfo Operating systems & Components / Operating system package or component libxml2-2 Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Use-after-free
EUVDB-ID: #VU54222
Risk: High
CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2021-3516
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in xmllint. A remote attacker can use a specially crafted file to execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationUpdate the affected package libxml2 to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Python2: 15-SP2 - 15-SP3
SUSE MicroOS: 5.0
SUSE Linux Enterprise Module for Basesystem: 15-SP2 - 15-SP3
libxml2-2-32bit-debuginfo: before 2.9.7-3.31.1
libxml2-2-32bit: before 2.9.7-3.31.1
python3-libxml2-python-debuginfo: before 2.9.7-3.31.1
python3-libxml2-python: before 2.9.7-3.31.1
libxml2-devel: before 2.9.7-3.31.1
python2-libxml2-python-debuginfo: before 2.9.7-3.31.1
python2-libxml2-python: before 2.9.7-3.31.1
python-libxml2-python-debugsource: before 2.9.7-3.31.1
libxml2-tools-debuginfo: before 2.9.7-3.31.1
libxml2-tools: before 2.9.7-3.31.1
libxml2-debugsource: before 2.9.7-3.31.1
libxml2-2-debuginfo: before 2.9.7-3.31.1
libxml2-2: before 2.9.7-3.31.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_python2:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_python2:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_microos:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:libxml2-2-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-2-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:python3-libxml2-python-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:python3-libxml2-python:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:python2-libxml2-python-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:python2-libxml2-python:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:python-libxml2-python-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-tools-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-tools:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-2-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-2:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20211523-1/
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.
2) Out-of-bounds write
EUVDB-ID: #VU54224
Risk: High
CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2021-3517
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in the xml entity encoding functionality. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.
MitigationUpdate the affected package libxml2 to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Python2: 15-SP2 - 15-SP3
SUSE MicroOS: 5.0
SUSE Linux Enterprise Module for Basesystem: 15-SP2 - 15-SP3
libxml2-2-32bit-debuginfo: before 2.9.7-3.31.1
libxml2-2-32bit: before 2.9.7-3.31.1
python3-libxml2-python-debuginfo: before 2.9.7-3.31.1
python3-libxml2-python: before 2.9.7-3.31.1
libxml2-devel: before 2.9.7-3.31.1
python2-libxml2-python-debuginfo: before 2.9.7-3.31.1
python2-libxml2-python: before 2.9.7-3.31.1
python-libxml2-python-debugsource: before 2.9.7-3.31.1
libxml2-tools-debuginfo: before 2.9.7-3.31.1
libxml2-tools: before 2.9.7-3.31.1
libxml2-debugsource: before 2.9.7-3.31.1
libxml2-2-debuginfo: before 2.9.7-3.31.1
libxml2-2: before 2.9.7-3.31.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_python2:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_python2:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_microos:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:libxml2-2-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-2-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:python3-libxml2-python-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:python3-libxml2-python:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:python2-libxml2-python-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:python2-libxml2-python:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:python-libxml2-python-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-tools-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-tools:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-2-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-2:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20211523-1/
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) Use-after-free
EUVDB-ID: #VU54225
Risk: High
CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2021-3518
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in libxml2. A remote attacker can use a specially crafted file and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationUpdate the affected package libxml2 to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Python2: 15-SP2 - 15-SP3
SUSE MicroOS: 5.0
SUSE Linux Enterprise Module for Basesystem: 15-SP2 - 15-SP3
libxml2-2-32bit-debuginfo: before 2.9.7-3.31.1
libxml2-2-32bit: before 2.9.7-3.31.1
python3-libxml2-python-debuginfo: before 2.9.7-3.31.1
python3-libxml2-python: before 2.9.7-3.31.1
libxml2-devel: before 2.9.7-3.31.1
python2-libxml2-python-debuginfo: before 2.9.7-3.31.1
python2-libxml2-python: before 2.9.7-3.31.1
python-libxml2-python-debugsource: before 2.9.7-3.31.1
libxml2-tools-debuginfo: before 2.9.7-3.31.1
libxml2-tools: before 2.9.7-3.31.1
libxml2-debugsource: before 2.9.7-3.31.1
libxml2-2-debuginfo: before 2.9.7-3.31.1
libxml2-2: before 2.9.7-3.31.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_python2:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_python2:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_microos:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:libxml2-2-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-2-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:python3-libxml2-python-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:python3-libxml2-python:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:python2-libxml2-python-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:python2-libxml2-python:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:python-libxml2-python-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-tools-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-tools:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-2-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libxml2-2:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20211523-1/
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.
