CVE-2022-23477

NameCVE-2022-23477
Descriptionxrdp is an open source project which provides a graphical login to remote machines using Microsoft Remote Desktop Protocol (RDP). xrdp < v0.9.21 contain a buffer over flow in audin_send_open() function. There are no known workarounds for this issue. Users are advised to upgrade.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-5502-1
Debian Bugs1025879

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xrdp (PTS)buster0.9.9-1+deb10u1fixed
buster (security)0.9.9-1+deb10u3fixed
bullseye (security), bullseye0.9.21.1-1~deb11u1fixed
bookworm0.9.21.1-1fixed
sid, trixie0.9.24-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xrdpsourcebuster(not affected)
xrdpsourcebullseye0.9.21.1-1~deb11u1DSA-5502-1
xrdpsource(unstable)0.9.21.1-11025879

Notes

[buster] - xrdp <not-affected> (Code not present)
https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-hqw2-jx2c-wrr2
https://github.com/neutrinolabs/xrdp/commit/96afae1ec559f9befa1c222f92f0d982e410c864

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