SUSE update for the Linux Kernel (Live Patch 7 for SLE 15 SP3)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2021-4028 CVE-2021-42739 CVE-2022-0185 |
| CWE-ID | CWE-416 CWE-119 CWE-190 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #3 is available. |
| Vulnerable software Subscribe |
SUSE Linux Enterprise Module for Live Patching Operating systems & Components / Operating system kernel-livepatch-SLE15-SP3_Update_7-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP3_Update_6-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-59_27-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-59_27-default Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-59_24-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-59_24-default 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: #VU60797
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-4028
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 the RDMA listen()
function in Linux kernel. A local user can run a specially crafted program to trigger a use-after-free error and execute arbitrary code with elevated privileges.
Update the affected package the Linux Kernel (Live Patch 7 for SLE 15 SP3) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Live Patching: 15-SP3
kernel-livepatch-SLE15-SP3_Update_7-debugsource: before 4-150300.2.2
kernel-livepatch-SLE15-SP3_Update_6-debugsource: before 4-150300.2.2
kernel-livepatch-5_3_18-59_27-default-debuginfo: before 4-150300.2.2
kernel-livepatch-5_3_18-59_27-default: before 4-150300.2.2
kernel-livepatch-5_3_18-59_24-default-debuginfo: before 4-150300.2.2
kernel-livepatch-5_3_18-59_24-default: before 4-150300.2.2
External linkshttp://www.suse.com/support/update/announcement/2022/suse-su-20220270-1/
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) Buffer overflow
EUVDB-ID: #VU59474
Risk: Low
CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-42739
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary within the firewire subsystem in the Linux kernel in drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c files. A local privileged user can run a specially crafted program tat calls avc_ca_pmt() function to trigger memory corruption and execute arbitrary code with elevated privileges.
Update the affected package the Linux Kernel (Live Patch 7 for SLE 15 SP3) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Live Patching: 15-SP3
kernel-livepatch-SLE15-SP3_Update_7-debugsource: before 4-150300.2.2
kernel-livepatch-SLE15-SP3_Update_6-debugsource: before 4-150300.2.2
kernel-livepatch-5_3_18-59_27-default-debuginfo: before 4-150300.2.2
kernel-livepatch-5_3_18-59_27-default: before 4-150300.2.2
kernel-livepatch-5_3_18-59_24-default-debuginfo: before 4-150300.2.2
kernel-livepatch-5_3_18-59_24-default: before 4-150300.2.2
External linkshttp://www.suse.com/support/update/announcement/2022/suse-su-20220270-1/
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) Integer overflow
EUVDB-ID: #VU59695
Risk: Low
CVSSv3.1: 7.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2022-0185
CWE-ID:
CWE-190 - Integer overflow
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to integer overflow in the legacy_parse_param() function in fs/fs_context.c in Linux kernel. A local user can tun a specially crafted program to trigger integer overflow and execute arbitrary code with root privileges.
Update the affected package the Linux Kernel (Live Patch 7 for SLE 15 SP3) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Live Patching: 15-SP3
kernel-livepatch-SLE15-SP3_Update_7-debugsource: before 4-150300.2.2
kernel-livepatch-SLE15-SP3_Update_6-debugsource: before 4-150300.2.2
kernel-livepatch-5_3_18-59_27-default-debuginfo: before 4-150300.2.2
kernel-livepatch-5_3_18-59_27-default: before 4-150300.2.2
kernel-livepatch-5_3_18-59_24-default-debuginfo: before 4-150300.2.2
kernel-livepatch-5_3_18-59_24-default: before 4-150300.2.2
External linkshttp://www.suse.com/support/update/announcement/2022/suse-su-20220270-1/
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. However, proof of concept for this vulnerability is available.
