Multiple vulnerabilities in uClibC-ng



| Updated: 2023-02-13
Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2022-29503
CVE-2022-29504
CVE-2022-30295
CWE-ID CWE-119
CWE-342
Exploitation vector Network
Public exploit N/A
Vulnerable software
 uClibC-ng
Universal components / Libraries / Libraries used by multiple products

Vendor uclibc-ng.org

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU67597

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-29503

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the pthread linuxthreads.old functionality. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

uClibC-ng: 1.0.0 - 1.0.40

CPE2.3 External links

https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1517


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.

2) Buffer overflow

EUVDB-ID: #VU67598

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-29504

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the pthread linuxthreads functionality. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

uClibC-ng: 1.0.0 - 1.0.40

CPE2.3 External links

https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1517


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.

3) Predictable Exact Value from Previous Values

EUVDB-ID: #VU72145

Risk: Medium

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

CVE-ID: CVE-2022-30295

CWE-ID: CWE-342 - Predictable Exact Value from Previous Values

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DNS cache poisoning.

The vulnerability exists due to software uses predictable DNS transaction IDs. A remote attacker can perform DNS cache poisoning.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

uClibC-ng: 1.0.0 - 1.0.40

CPE2.3 External links

https://www.nozominetworks.com/blog/nozomi-networks-discovers-unpatched-dns-bug-in-popular-c-standard-library-putting-iot-at-risk/
https://www.kb.cert.org/vuls/id/473698


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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