SUSE update for the Linux Kernel (Live Patch 0 for SLE 15 SP3)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 7 |
| CVE-ID | CVE-2020-36322 CVE-2021-28660 CVE-2021-29154 CVE-2021-32399 CVE-2021-33034 CVE-2021-3489 CVE-2021-3490 |
| CWE-ID | CWE-404 CWE-787 CWE-77 CWE-362 CWE-416 CWE-125 |
| Exploitation vector | Local |
| Public exploit | Vulnerability #7 is being exploited in the wild. |
| Vulnerable software |
SUSE Linux Enterprise Module for Live Patching Operating systems & Components / Operating system kernel-livepatch-SLE15-SP3_Update_0-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-57-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-57-default Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 7 vulnerabilities.
1) Improper Resource Shutdown or Release
EUVDB-ID: #VU59473
Risk: Low
CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2020-36322
CWE-ID:
CWE-404 - Improper Resource Shutdown or Release
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists in the FUSE filesystem implementation in the Linux kernel due to fuse_do_getattr() calls make_bad_inode() in inappropriate situations. A local user can run a specially crafted program to trigger kernel crash.
Note, the vulnerability exists due to incomplete fix for #VU58207 (CVE-2021-28950).
Update the affected package the Linux Kernel (Live Patch 0 for SLE 15 SP3) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Live Patching: 15-SP3
kernel-livepatch-SLE15-SP3_Update_0-debugsource: before 2-3.1
kernel-livepatch-5_3_18-57-default-debuginfo: before 2-3.1
kernel-livepatch-5_3_18-57-default: before 2-3.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kernel-livepatch-sle15-sp3_update_0-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_3_18-57-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_3_18-57-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20212198-1/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
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: #VU56817
Risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-28660
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a local user to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in the "rtw_wx_set_scan" in drivers/staging/rtl8188eu/os_dep/ioctl_linux.c. A local user can trigger out-of-bounds write and execute arbitrary code on the target system.
MitigationUpdate the affected package the Linux Kernel (Live Patch 0 for SLE 15 SP3) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Live Patching: 15-SP3
kernel-livepatch-SLE15-SP3_Update_0-debugsource: before 2-3.1
kernel-livepatch-5_3_18-57-default-debuginfo: before 2-3.1
kernel-livepatch-5_3_18-57-default: before 2-3.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kernel-livepatch-sle15-sp3_update_0-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_3_18-57-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_3_18-57-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20212198-1/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Command Injection
EUVDB-ID: #VU56241
Risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-29154
CWE-ID:
CWE-77 - Command injection
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incorrect computation of branch displacements within the BPF JIT compilers in the Linux kernel in arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c. A local user can inject and execute arbitrary commands with elevated privileges.
Update the affected package the Linux Kernel (Live Patch 0 for SLE 15 SP3) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Live Patching: 15-SP3
kernel-livepatch-SLE15-SP3_Update_0-debugsource: before 2-3.1
kernel-livepatch-5_3_18-57-default-debuginfo: before 2-3.1
kernel-livepatch-5_3_18-57-default: before 2-3.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kernel-livepatch-sle15-sp3_update_0-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_3_18-57-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_3_18-57-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20212198-1/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Race condition
EUVDB-ID: #VU55257
Risk: Low
CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-32399
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition for removal of the HCI controller within net/bluetooth/hci_request.c in the Linux kernel. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
MitigationUpdate the affected package the Linux Kernel (Live Patch 0 for SLE 15 SP3) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Live Patching: 15-SP3
kernel-livepatch-SLE15-SP3_Update_0-debugsource: before 2-3.1
kernel-livepatch-5_3_18-57-default-debuginfo: before 2-3.1
kernel-livepatch-5_3_18-57-default: before 2-3.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kernel-livepatch-sle15-sp3_update_0-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_3_18-57-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_3_18-57-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20212198-1/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
5) Use-after-free
EUVDB-ID: #VU54454
Risk: Low
CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-33034
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error in net/bluetooth/hci_event.c when destroying an hci_chan. A local user can escalate privileges on the system.
Update the affected package the Linux Kernel (Live Patch 0 for SLE 15 SP3) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Live Patching: 15-SP3
kernel-livepatch-SLE15-SP3_Update_0-debugsource: before 2-3.1
kernel-livepatch-5_3_18-57-default-debuginfo: before 2-3.1
kernel-livepatch-5_3_18-57-default: before 2-3.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kernel-livepatch-sle15-sp3_update_0-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_3_18-57-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_3_18-57-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20212198-1/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
6) Out-of-bounds read
EUVDB-ID: #VU90367
Risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-3489
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to an out-of-bounds read error within the __bpf_ringbuf_reserve() function in kernel/bpf/ringbuf.c. A local user can execute arbitrary code.
MitigationUpdate the affected package the Linux Kernel (Live Patch 0 for SLE 15 SP3) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Live Patching: 15-SP3
kernel-livepatch-SLE15-SP3_Update_0-debugsource: before 2-3.1
kernel-livepatch-5_3_18-57-default-debuginfo: before 2-3.1
kernel-livepatch-5_3_18-57-default: before 2-3.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kernel-livepatch-sle15-sp3_update_0-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_3_18-57-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_3_18-57-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20212198-1/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
7) Out-of-bounds write
EUVDB-ID: #VU55975
Risk: Low
CVSSv4.0: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear]
CVE-ID: CVE-2021-3490
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: Yes
Description The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error when processing untrusted input in bpf. The eBPF ALU32 bounds tracking for bitwise ops (AND, OR and XOR) in the
Linux kernel did not properly update 32-bit bounds, which could be
turned into out of bounds reads and writes in the Linux kernel and
therefore, arbitrary code execution. A local user can run a specially crafted program to trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
Update the affected package the Linux Kernel (Live Patch 0 for SLE 15 SP3) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Live Patching: 15-SP3
kernel-livepatch-SLE15-SP3_Update_0-debugsource: before 2-3.1
kernel-livepatch-5_3_18-57-default-debuginfo: before 2-3.1
kernel-livepatch-5_3_18-57-default: before 2-3.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kernel-livepatch-sle15-sp3_update_0-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_3_18-57-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_3_18-57-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20212198-1/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
