Debian update for proftpd-dfsg



Published: 2020-02-27
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-9273
CWE-ID CWE-416
Exploitation vector Network
Public exploit N/A
Vulnerable software
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proftpd-dfsg (Debian package)
Operating systems & Components / Operating system package or component

Vendor Debian

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU25595

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-9273

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing data transfer within the alloc_pool() function in pool.c. A remote authenticated attacker can trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update proftpd-dfsg package to one of the following versions: 1.3.5b-4+deb9u4, 1.3.6-4+deb10u4.

Vulnerable software versions

proftpd-dfsg (Debian package): 1.3.5b-4+deb9u1 - 1.3.6-4+deb10u3

External links

http://www.debian.org/security/2020/dsa-4635


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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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