CVE-2021-31439

NameCVE-2021-31439
DescriptionThis vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Synology DiskStation Manager. Authentication is not required to exploit this vulnerablity. The specific flaw exists within the processing of DSI structures in Netatalk. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12326.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
netatalk (PTS)buster3.1.12~ds-3vulnerable
bullseye3.1.12~ds-8vulnerable
bookworm, sid3.1.13~ds-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
netatalksource(unstable)3.1.13~ds-1

Notes

https://netatalk.sourceforge.io/3.1/ReleaseNotes3.1.13.html
https://github.com/Netatalk/Netatalk/commit/779717df2ed39b701deaf2472b42d59ff50fab7f

Search for package or bug name: Reporting problems