openEuler 20.03 LTS SP1 update for kernel



Risk Medium
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2022-1184
CVE-2022-39842
CVE-2022-3303
CVE-2022-2663
CWE-ID CWE-416
CWE-190
CWE-476
CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
openEuler
Operating systems & Components / Operating system

python2-perf
Operating systems & Components / Operating system package or component

python2-perf-debuginfo
Operating systems & Components / Operating system package or component

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

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

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

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

bpftool
Operating systems & Components / Operating system package or component

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

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

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

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

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

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

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

perf
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 4 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU64438

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-2022-1184

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error in fs/ext4/namei.c:dx_insert_block() function in the Linux kernel’s filesystem sub-component.. A local user can trigger use-after-free and perform a denial of service attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

python2-perf: before 4.19.90-2210.1.0.0171

python2-perf-debuginfo: before 4.19.90-2210.1.0.0171

python3-perf: before 4.19.90-2210.1.0.0171

kernel-tools: before 4.19.90-2210.1.0.0171

bpftool-debuginfo: before 4.19.90-2210.1.0.0171

kernel-debugsource: before 4.19.90-2210.1.0.0171

bpftool: before 4.19.90-2210.1.0.0171

kernel-debuginfo: before 4.19.90-2210.1.0.0171

kernel-source: before 4.19.90-2210.1.0.0171

kernel-devel: before 4.19.90-2210.1.0.0171

python3-perf-debuginfo: before 4.19.90-2210.1.0.0171

kernel-tools-devel: before 4.19.90-2210.1.0.0171

perf-debuginfo: before 4.19.90-2210.1.0.0171

kernel-tools-debuginfo: before 4.19.90-2210.1.0.0171

perf: before 4.19.90-2210.1.0.0171

kernel: before 4.19.90-2210.1.0.0171

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1991


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) 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: 20.03 LTS SP1

python2-perf: before 4.19.90-2210.1.0.0171

python2-perf-debuginfo: before 4.19.90-2210.1.0.0171

python3-perf: before 4.19.90-2210.1.0.0171

kernel-tools: before 4.19.90-2210.1.0.0171

bpftool-debuginfo: before 4.19.90-2210.1.0.0171

kernel-debugsource: before 4.19.90-2210.1.0.0171

bpftool: before 4.19.90-2210.1.0.0171

kernel-debuginfo: before 4.19.90-2210.1.0.0171

kernel-source: before 4.19.90-2210.1.0.0171

kernel-devel: before 4.19.90-2210.1.0.0171

python3-perf-debuginfo: before 4.19.90-2210.1.0.0171

kernel-tools-devel: before 4.19.90-2210.1.0.0171

perf-debuginfo: before 4.19.90-2210.1.0.0171

kernel-tools-debuginfo: before 4.19.90-2210.1.0.0171

perf: before 4.19.90-2210.1.0.0171

kernel: before 4.19.90-2210.1.0.0171

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1991


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) NULL pointer dereference

EUVDB-ID: #VU68338

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-3303

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error in the Linux kernel sound subsystem due to improper locking when handling the SNDCTL_DSP_SYNC ioctl. A privileged local user can trigger a NULL pointer dereference error and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

python2-perf: before 4.19.90-2210.1.0.0171

python2-perf-debuginfo: before 4.19.90-2210.1.0.0171

python3-perf: before 4.19.90-2210.1.0.0171

kernel-tools: before 4.19.90-2210.1.0.0171

bpftool-debuginfo: before 4.19.90-2210.1.0.0171

kernel-debugsource: before 4.19.90-2210.1.0.0171

bpftool: before 4.19.90-2210.1.0.0171

kernel-debuginfo: before 4.19.90-2210.1.0.0171

kernel-source: before 4.19.90-2210.1.0.0171

kernel-devel: before 4.19.90-2210.1.0.0171

python3-perf-debuginfo: before 4.19.90-2210.1.0.0171

kernel-tools-devel: before 4.19.90-2210.1.0.0171

perf-debuginfo: before 4.19.90-2210.1.0.0171

kernel-tools-debuginfo: before 4.19.90-2210.1.0.0171

perf: before 4.19.90-2210.1.0.0171

kernel: before 4.19.90-2210.1.0.0171

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1991


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) 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: 20.03 LTS SP1

python2-perf: before 4.19.90-2210.1.0.0171

python2-perf-debuginfo: before 4.19.90-2210.1.0.0171

python3-perf: before 4.19.90-2210.1.0.0171

kernel-tools: before 4.19.90-2210.1.0.0171

bpftool-debuginfo: before 4.19.90-2210.1.0.0171

kernel-debugsource: before 4.19.90-2210.1.0.0171

bpftool: before 4.19.90-2210.1.0.0171

kernel-debuginfo: before 4.19.90-2210.1.0.0171

kernel-source: before 4.19.90-2210.1.0.0171

kernel-devel: before 4.19.90-2210.1.0.0171

python3-perf-debuginfo: before 4.19.90-2210.1.0.0171

kernel-tools-devel: before 4.19.90-2210.1.0.0171

perf-debuginfo: before 4.19.90-2210.1.0.0171

kernel-tools-debuginfo: before 4.19.90-2210.1.0.0171

perf: before 4.19.90-2210.1.0.0171

kernel: before 4.19.90-2210.1.0.0171

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1991


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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