SUSE update for xen
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2022-42331 CVE-2022-42332 |
| CWE-ID | CWE-1037 CWE-416 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
SUSE Linux Enterprise Server 12 SP2 BCL Operating systems & Components / Operating system SUSE Linux Enterprise Server 12 Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 12 Operating systems & Components / Operating system xen-libs-debuginfo Operating systems & Components / Operating system package or component xen-tools-debuginfo Operating systems & Components / Operating system package or component xen-doc-html Operating systems & Components / Operating system package or component xen-tools-domU-debuginfo Operating systems & Components / Operating system package or component xen-debugsource Operating systems & Components / Operating system package or component xen-libs-debuginfo-32bit Operating systems & Components / Operating system package or component xen-tools Operating systems & Components / Operating system package or component xen-libs-32bit Operating systems & Components / Operating system package or component xen-libs Operating systems & Components / Operating system package or component xen-tools-domU Operating systems & Components / Operating system package or component xen Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Processor optimization removal or modification of security-critical code
EUVDB-ID: #VU73892
Risk: Medium
CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2022-42331
CWE-ID:
CWE-1037 - Processor optimization removal or modification of security-critical code
Exploit availability: No
DescriptionThe vulnerability allows an attacker to escalate privileges on the system.
The vulnerability exists due to an oversight in the very original Spectre/Meltdown security work (XSA-254) caused by an unprotected RET instruction. An attacker with access to the guest OS can infer the contents of arbitrary host memory, including memory assigned to other guests.
Update the affected package xen to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server 12 SP2 BCL: 12-SP2
SUSE Linux Enterprise Server 12: SP2
SUSE Linux Enterprise High Performance Computing 12: SP2
xen-libs-debuginfo: before 4.7.6_32-43.104.1
xen-tools-debuginfo: before 4.7.6_32-43.104.1
xen-doc-html: before 4.7.6_32-43.104.1
xen-tools-domU-debuginfo: before 4.7.6_32-43.104.1
xen-debugsource: before 4.7.6_32-43.104.1
xen-libs-debuginfo-32bit: before 4.7.6_32-43.104.1
xen-tools: before 4.7.6_32-43.104.1
xen-libs-32bit: before 4.7.6_32-43.104.1
xen-libs: before 4.7.6_32-43.104.1
xen-tools-domU: before 4.7.6_32-43.104.1
xen: before 4.7.6_32-43.104.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_server_12_sp2_bcl:12-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP2:*:*:*:*:*:*:*
- cpe:2.3:a:suse:xen-libs-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-tools-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-doc-html:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-tools-domu-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-libs-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-tools:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-libs-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-libs:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-tools-domu:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2023/suse-su-20230846-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Use-after-free
EUVDB-ID: #VU73893
Risk: Medium
CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2022-42332
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows an attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when guests are running in the shadow mode. An attacker with access to the guest OS can trigger a use-after-free error and escalate privileges on the system.
Update the affected package xen to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server 12 SP2 BCL: 12-SP2
SUSE Linux Enterprise Server 12: SP2
SUSE Linux Enterprise High Performance Computing 12: SP2
xen-libs-debuginfo: before 4.7.6_32-43.104.1
xen-tools-debuginfo: before 4.7.6_32-43.104.1
xen-doc-html: before 4.7.6_32-43.104.1
xen-tools-domU-debuginfo: before 4.7.6_32-43.104.1
xen-debugsource: before 4.7.6_32-43.104.1
xen-libs-debuginfo-32bit: before 4.7.6_32-43.104.1
xen-tools: before 4.7.6_32-43.104.1
xen-libs-32bit: before 4.7.6_32-43.104.1
xen-libs: before 4.7.6_32-43.104.1
xen-tools-domU: before 4.7.6_32-43.104.1
xen: before 4.7.6_32-43.104.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_server_12_sp2_bcl:12-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP2:*:*:*:*:*:*:*
- cpe:2.3:a:suse:xen-libs-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-tools-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-doc-html:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-tools-domu-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-libs-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-tools:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-libs-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-libs:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen-tools-domu:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xen:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2023/suse-su-20230846-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
