Debian update for trafficserver

1) Resource exhaustion

EUVDB-ID: #VU20200

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-9512

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to improper validation of user-supplied input when processing HTTP/2 requests. A remote attacker can send specially crafted HTTP packets to the affected system trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Update the affected package to version: 8.0.2+ds-1+deb10u1.

Vulnerable software versions

trafficserver (Debian package): 8.0.0-1 - 8.0.2+ds-1

CPE2.3

External links

https://www.debian.org/security/2019/dsa-4520

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) Resource exhaustion

EUVDB-ID: #VU20201

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-9514

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to improper validation of user-supplied input when processing HTTP/2 requests. A remote attacker can send specially crafted HTTP packets to the affected system trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Update the affected package to version: 8.0.2+ds-1+deb10u1.

Vulnerable software versions

trafficserver (Debian package): 8.0.0-1 - 8.0.2+ds-1

CPE2.3

External links

https://www.debian.org/security/2019/dsa-4520

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) Resource management error

EUVDB-ID: #VU20337

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-9515

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to an error in HTTP/2 implementation when processing SETTINGS frames. A remote attacker can send a huge amount of SETTINGS frames to the peer and consume excessive CPU and memory on the system.

Mitigation

Update the affected package to version: 8.0.2+ds-1+deb10u1.

Vulnerable software versions

trafficserver (Debian package): 8.0.0-1 - 8.0.2+ds-1

CPE2.3

External links

https://www.debian.org/security/2019/dsa-4520

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) Resource exhaustion

EUVDB-ID: #VU20199

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-9518

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to improper validation of user-supplied input within the HTTP.sys driver when processing HTTP/2 requests. A remote attacker can send specially crafted HTTP packets to the affected system trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Update the affected package to version: 8.0.2+ds-1+deb10u1.

Vulnerable software versions

trafficserver (Debian package): 8.0.0-1 - 8.0.2+ds-1

CPE2.3

External links

https://www.debian.org/security/2019/dsa-4520

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.

Risk	Medium
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2019-9512 CVE-2019-9514 CVE-2019-9515 CVE-2019-9518
CWE-ID	CWE-400 CWE-399
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	trafficserver (Debian package) Operating systems & Components / Operating system package or component
Vendor	Debian