Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
EUVDB-ID: #VU54478
Risk: Low
CVSSv3.1: 3.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-20266
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the hdrblobInit() function in lib/header.c. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
MitigationUpdate the affected package rpm to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for SUSE Manager Proxy: 4.1
SUSE Linux Enterprise Module for Public Cloud: 15-SP2
SUSE Linux Enterprise Module for Python2: 15-SP2
SUSE Linux Enterprise Module for SUSE Manager Server: 4.1
SUSE MicroOS: 5.0
SUSE Linux Enterprise Module for Development Tools: 15-SP2
SUSE Linux Enterprise Module for Basesystem: 15-SP2
rpm-32bit-debuginfo: before 4.14.1-22.4.2
rpm-32bit: before 4.14.1-22.4.2
rpm-devel: before 4.14.1-22.4.2
rpm-ndb-debugsource: before 4.14.1-22.4.2
rpm-ndb-debuginfo: before 4.14.1-22.4.2
rpm-ndb: before 4.14.1-22.4.2
python2-rpm-debuginfo: before 4.14.1-22.4.1
python2-rpm: before 4.14.1-22.4.1
rpm-build-debuginfo: before 4.14.1-22.4.2
rpm-build: before 4.14.1-22.4.2
rpm-debugsource: before 4.14.1-22.4.2
rpm-debuginfo: before 4.14.1-22.4.2
rpm: before 4.14.1-22.4.2
python3-rpm-debuginfo: before 4.14.1-22.4.1
python3-rpm: before 4.14.1-22.4.1
python-rpm-debugsource: before 4.14.1-22.4.1
External linkshttp://www.suse.com/support/update/announcement/2021/suse-su-20213444-1/
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.
EUVDB-ID: #VU54477
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-20271
CWE-ID:
CWE-345 - Insufficient Verification of Data Authenticity
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to an error in RPM's signature check functionality when reading package files. A remote attacker can create a specially crafted package with a modified signature header, trick the victim into installing and compromise the affected system.
Update the affected package rpm to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for SUSE Manager Proxy: 4.1
SUSE Linux Enterprise Module for Public Cloud: 15-SP2
SUSE Linux Enterprise Module for Python2: 15-SP2
SUSE Linux Enterprise Module for SUSE Manager Server: 4.1
SUSE MicroOS: 5.0
SUSE Linux Enterprise Module for Development Tools: 15-SP2
SUSE Linux Enterprise Module for Basesystem: 15-SP2
rpm-32bit-debuginfo: before 4.14.1-22.4.2
rpm-32bit: before 4.14.1-22.4.2
rpm-devel: before 4.14.1-22.4.2
rpm-ndb-debugsource: before 4.14.1-22.4.2
rpm-ndb-debuginfo: before 4.14.1-22.4.2
rpm-ndb: before 4.14.1-22.4.2
python2-rpm-debuginfo: before 4.14.1-22.4.1
python2-rpm: before 4.14.1-22.4.1
rpm-build-debuginfo: before 4.14.1-22.4.2
rpm-build: before 4.14.1-22.4.2
rpm-debugsource: before 4.14.1-22.4.2
rpm-debuginfo: before 4.14.1-22.4.2
rpm: before 4.14.1-22.4.2
python3-rpm-debuginfo: before 4.14.1-22.4.1
python3-rpm: before 4.14.1-22.4.1
python-rpm-debugsource: before 4.14.1-22.4.1
External linkshttp://www.suse.com/support/update/announcement/2021/suse-su-20213444-1/
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.
EUVDB-ID: #VU54479
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3421
CWE-ID:
CWE-347 - Improper Verification of Cryptographic Signature
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to insufficient signature validation in the read functionality n the RPM package. A remote attacker can trick the victim into installing a seemingly verifiable package and cause RPM database corruption.
MitigationUpdate the affected package rpm to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for SUSE Manager Proxy: 4.1
SUSE Linux Enterprise Module for Public Cloud: 15-SP2
SUSE Linux Enterprise Module for Python2: 15-SP2
SUSE Linux Enterprise Module for SUSE Manager Server: 4.1
SUSE MicroOS: 5.0
SUSE Linux Enterprise Module for Development Tools: 15-SP2
SUSE Linux Enterprise Module for Basesystem: 15-SP2
rpm-32bit-debuginfo: before 4.14.1-22.4.2
rpm-32bit: before 4.14.1-22.4.2
rpm-devel: before 4.14.1-22.4.2
rpm-ndb-debugsource: before 4.14.1-22.4.2
rpm-ndb-debuginfo: before 4.14.1-22.4.2
rpm-ndb: before 4.14.1-22.4.2
python2-rpm-debuginfo: before 4.14.1-22.4.1
python2-rpm: before 4.14.1-22.4.1
rpm-build-debuginfo: before 4.14.1-22.4.2
rpm-build: before 4.14.1-22.4.2
rpm-debugsource: before 4.14.1-22.4.2
rpm-debuginfo: before 4.14.1-22.4.2
rpm: before 4.14.1-22.4.2
python3-rpm-debuginfo: before 4.14.1-22.4.1
python3-rpm: before 4.14.1-22.4.1
python-rpm-debugsource: before 4.14.1-22.4.1
External linkshttp://www.suse.com/support/update/announcement/2021/suse-su-20213444-1/
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.