Debian update for ppp



Published: 2020-02-23
Risk High
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2020-8597
CWE ID CWE-119
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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ppp (Debian package)
Operating systems & Components / Operating system package or component

Vendor Debian

Security Advisory

This security advisory describes one high risk vulnerability.

1) Buffer overflow

Risk: High

CVSSv3: 9.3 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C] [PCI]

CVE-ID: CVE-2020-8597

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: Yes [Search exploit]

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 "eap_request" and "eap_response" functions in "eap.c" file in pppd. 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

Update the affected package to version: 2.4.7-1+4+deb9u1, 2.4.7-2+4.1+deb10u1.

Vulnerable software versions

ppp (Debian package): 2.4.1.uus-1, 2.4.1.uus-2, 2.4.1.uus-3, 2.4.1.uus-4, 2.4.1.uus-4.1, 2.4.1.uus-4.2, 2.4.1.uus-4.3, 2.4.1.uus-5, 2.4.1.uus2-2, 2.4.1.uus2-3, 2.4.2+20030811-1, 2.4.2+20030811-2, 2.4.2+20030811-3, 2.4.2+20030811-4, 2.4.2+20030811-5, 2.4.2+20030811-6, 2.4.2+20031002-1, 2.4.2+20031002-2, 2.4.2+20031002-3, 2.4.2+20031002-4, 2.4.2+20031127-2, 2.4.2+20040202-1, 2.4.2+20040202-2, 2.4.2+20040202-3, 2.4.2+20040427-1, 2.4.2+20040428-1, 2.4.2+20040428-2, 2.4.2+20040428-3, 2.4.2+20040428-4, 2.4.2+20040428-5, 2.4.2+20040428-6, 2.4.3-20041231+1, 2.4.3-20041231+2, 2.4.3-20041231+3, 2.4.3-20050321+1, 2.4.3-20050321+2, 2.4.3-20050321+2sarge1, 2.4.4b1-1, 2.4.4rel-1, 2.4.4rel-1bpo1, 2.4.4rel-2, 2.4.4rel-3, 2.4.4rel-4, 2.4.4rel-4.1, 2.4.4rel-5, 2.4.4rel-6, 2.4.4rel-7, 2.4.4rel-8, 2.4.4rel-9, 2.4.4rel-10, 2.4.4rel-10.1, 2.4.5+git20130610-1, 2.4.5+git20130610-2, 2.4.5+git20130610-3, 2.4.5+git20130610-4, 2.4.5-1, 2.4.5-2, 2.4.5-3, 2.4.5-4, 2.4.5-4+deb6u1, 2.4.5-4+deb6u2, 2.4.5-5, 2.4.5-5.1, 2.4.5-5.1+deb7u1, 2.4.5-5.1+deb7u2, 2.4.5-5.2, 2.4.6-1, 2.4.6-2, 2.4.6-3, 2.4.6-3.1, 2.4.6-3.1+deb8u1, 2.4.7-1+1, 2.4.7-1+1~exp1, 2.4.7-1+1~exp2, 2.4.7-1+2, 2.4.7-1+2~exp1, 2.4.7-1+2~exp2, 2.4.7-1+2~exp3, 2.4.7-1+3, 2.4.7-1+4, 2.4.7-2+4.1

CPE External links

https://www.debian.org/security/2020/dsa-4632

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. However, proof of concept for this vulnerability is available.