openEuler 22.03 LTS update for kernel



Risk Medium
Patch available YES
Number of vulnerabilities 5
CVE-ID CVE-2022-39842
CVE-2022-39190
CVE-2022-39189
CVE-2022-3061
CVE-2022-2663
CWE-ID CWE-190
CWE-125
CWE-264
CWE-369
CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 openEuler
Operating systems & Components / Operating system

kernel-debuginfo
Operating systems & Components / Operating system package or component

kernel-headers
Operating systems & Components / Operating system package or component

bpftool-debuginfo
Operating systems & Components / Operating system package or component

python3-perf-debuginfo
Operating systems & Components / Operating system package or component

kernel-source
Operating systems & Components / Operating system package or component

python3-perf
Operating systems & Components / Operating system package or component

perf
Operating systems & Components / Operating system package or component

perf-debuginfo
Operating systems & Components / Operating system package or component

kernel-tools
Operating systems & Components / Operating system package or component

kernel-devel
Operating systems & Components / Operating system package or component

kernel-debugsource
Operating systems & Components / Operating system package or component

kernel-tools-debuginfo
Operating systems & Components / Operating system package or component

kernel-tools-devel
Operating systems & Components / Operating system package or component

bpftool
Operating systems & Components / Operating system package or component

kernel
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Integer overflow

EUVDB-ID: #VU67914

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-2022-39842

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to integer overflow within the pxa3xx_gcu_write() function in drivers/video/fbdev/pxa3xx-gcu.c in Linux kernel. A local user can trigger an integer overflow and execute arbitrary code with escalated privileges.


Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

kernel-debuginfo: before 5.10.0-60.56.0.84

kernel-headers: before 5.10.0-60.56.0.84

bpftool-debuginfo: before 5.10.0-60.56.0.84

python3-perf-debuginfo: before 5.10.0-60.56.0.84

kernel-source: before 5.10.0-60.56.0.84

python3-perf: before 5.10.0-60.56.0.84

perf: before 5.10.0-60.56.0.84

perf-debuginfo: before 5.10.0-60.56.0.84

kernel-tools: before 5.10.0-60.56.0.84

kernel-devel: before 5.10.0-60.56.0.84

kernel-debugsource: before 5.10.0-60.56.0.84

kernel-tools-debuginfo: before 5.10.0-60.56.0.84

kernel-tools-devel: before 5.10.0-60.56.0.84

bpftool: before 5.10.0-60.56.0.84

kernel: before 5.10.0-60.56.0.84

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1927


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 read

EUVDB-ID: #VU67508

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-2022-39190

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service attack.

The vulnerability exists due to an out-of-bounds read error within the net/netfilter/nf_tables_api.c in the Linux kernel. A local user can bind to an already bound chain and crash the kernel.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

kernel-debuginfo: before 5.10.0-60.56.0.84

kernel-headers: before 5.10.0-60.56.0.84

bpftool-debuginfo: before 5.10.0-60.56.0.84

python3-perf-debuginfo: before 5.10.0-60.56.0.84

kernel-source: before 5.10.0-60.56.0.84

python3-perf: before 5.10.0-60.56.0.84

perf: before 5.10.0-60.56.0.84

perf-debuginfo: before 5.10.0-60.56.0.84

kernel-tools: before 5.10.0-60.56.0.84

kernel-devel: before 5.10.0-60.56.0.84

kernel-debugsource: before 5.10.0-60.56.0.84

kernel-tools-debuginfo: before 5.10.0-60.56.0.84

kernel-tools-devel: before 5.10.0-60.56.0.84

bpftool: before 5.10.0-60.56.0.84

kernel: before 5.10.0-60.56.0.84

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1927


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) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU68110

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-2022-39189

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a guest user to escalate privileges on the system.

The vulnerability exists due to incorrect handling of TLB flush operations in certain KVM_VCPU_PREEMPTED situations in the x86 KVM subsystem in the Linux kernel. An attacker with unprivileged access to the guest OS can escalate privileges on the guest.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

kernel-debuginfo: before 5.10.0-60.56.0.84

kernel-headers: before 5.10.0-60.56.0.84

bpftool-debuginfo: before 5.10.0-60.56.0.84

python3-perf-debuginfo: before 5.10.0-60.56.0.84

kernel-source: before 5.10.0-60.56.0.84

python3-perf: before 5.10.0-60.56.0.84

perf: before 5.10.0-60.56.0.84

perf-debuginfo: before 5.10.0-60.56.0.84

kernel-tools: before 5.10.0-60.56.0.84

kernel-devel: before 5.10.0-60.56.0.84

kernel-debugsource: before 5.10.0-60.56.0.84

kernel-tools-debuginfo: before 5.10.0-60.56.0.84

kernel-tools-devel: before 5.10.0-60.56.0.84

bpftool: before 5.10.0-60.56.0.84

kernel: before 5.10.0-60.56.0.84

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1927


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) Division by zero

EUVDB-ID: #VU68516

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-2022-3061

CWE-ID: CWE-369 - Divide By Zero

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to missing checks of the "pixclock" value in the Linux kernel i740 driver. A local user can pass arbitrary values to the driver through ioctl() interface, trigger a divide by zero error and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

kernel-debuginfo: before 5.10.0-60.56.0.84

kernel-headers: before 5.10.0-60.56.0.84

bpftool-debuginfo: before 5.10.0-60.56.0.84

python3-perf-debuginfo: before 5.10.0-60.56.0.84

kernel-source: before 5.10.0-60.56.0.84

python3-perf: before 5.10.0-60.56.0.84

perf: before 5.10.0-60.56.0.84

perf-debuginfo: before 5.10.0-60.56.0.84

kernel-tools: before 5.10.0-60.56.0.84

kernel-devel: before 5.10.0-60.56.0.84

kernel-debugsource: before 5.10.0-60.56.0.84

kernel-tools-debuginfo: before 5.10.0-60.56.0.84

kernel-tools-devel: before 5.10.0-60.56.0.84

bpftool: before 5.10.0-60.56.0.84

kernel: before 5.10.0-60.56.0.84

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1927


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) Input validation error

EUVDB-ID: #VU67510

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-2663

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass firewall rules.

The vulnerability exists due to insufficient validation of user-supplied input in nf_conntrack_irc in Linux kernel. A remote attacker can send unencrypted IRC with nf_conntrack_irc configured and bypass configured firewall rules.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

kernel-debuginfo: before 5.10.0-60.56.0.84

kernel-headers: before 5.10.0-60.56.0.84

bpftool-debuginfo: before 5.10.0-60.56.0.84

python3-perf-debuginfo: before 5.10.0-60.56.0.84

kernel-source: before 5.10.0-60.56.0.84

python3-perf: before 5.10.0-60.56.0.84

perf: before 5.10.0-60.56.0.84

perf-debuginfo: before 5.10.0-60.56.0.84

kernel-tools: before 5.10.0-60.56.0.84

kernel-devel: before 5.10.0-60.56.0.84

kernel-debugsource: before 5.10.0-60.56.0.84

kernel-tools-debuginfo: before 5.10.0-60.56.0.84

kernel-tools-devel: before 5.10.0-60.56.0.84

bpftool: before 5.10.0-60.56.0.84

kernel: before 5.10.0-60.56.0.84

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1927


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.



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