Fedora 29 update for libpcap



| Updated: 2025-04-25
Risk Medium
Patch available YES
Number of vulnerabilities 6
CVE-ID CVE-2018-16301
CVE-2019-15161
CVE-2019-15162
CVE-2019-15163
CVE-2019-15164
CVE-2019-15165
CWE-ID CWE-125
CWE-20
CWE-345
CWE-476
CWE-918
CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

libpcap
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains information about 6 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU21949

Risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-16301

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition in libpcap when during pcapng reading. A remote attacker can pass specially crafted data to the application that uses the affected library, trigger out-of-bounds read error and read contents of memory on the system or crash the application.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 29

libpcap: before 1.9.1-1.fc29

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2019-b92ce3144a


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) Input validation error

EUVDB-ID: #VU22308

Risk: Low

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

CVE-ID: CVE-2019-15161

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied input within the rpcapd/daemon.c in libpcap. A remote attacker can send specially crafted request to the application and gain access to sensitive information.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 29

libpcap: before 1.9.1-1.fc29

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2019-b92ce3144a


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) Insufficient verification of data authenticity

EUVDB-ID: #VU22309

Risk: Low

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

CVE-ID: CVE-2019-15162

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

Exploit availability: No

Description

The vulnerability allows a remote attacker to enumerate users on the system.

The vulnerability exists within the rpcapd/daemon.c in libpcap on non-Windows platforms due to the application provides details about failed authenticated attempts. A remote attacker can enumerate users on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 29

libpcap: before 1.9.1-1.fc29

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2019-b92ce3144a


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.

4) NULL pointer dereference

EUVDB-ID: #VU22310

Risk: Medium

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

CVE-ID: CVE-2019-15163

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dreference error within the rpcapd/daemon.c in libpcap if a crypt() call fails. A remote attacker can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 29

libpcap: before 1.9.1-1.fc29

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2019-b92ce3144a


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.

5) Server-Side Request Forgery (SSRF)

EUVDB-ID: #VU22311

Risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-15164

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input within the rpcapd/daemon.c in libpcap when processing URL as a capture source. A remote attacker can trick the victim to use a specially crafted URL to extract information.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 29

libpcap: before 1.9.1-1.fc29

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2019-b92ce3144a


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.

6) Buffer overflow

EUVDB-ID: #VU21950

Risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-15165

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the sf-pcapng.c in libpcap when processing the PHB header length before allocating memory. A remote attacker can pass specially crafted data to the application that uses the vulnerable library, trigger memory corruption and perform denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 29

libpcap: before 1.9.1-1.fc29

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2019-b92ce3144a


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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