| Name | CVE-2020-14387 |
| Description | A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with host mismatch vulnerability. A remote, unauthenticated attacker could exploit the flaw by performing a man-in-the-middle attack using a valid certificate for another hostname which could compromise confidentiality and integrity of data transmitted using rsync-ssl. The highest threat from this vulnerability is to data confidentiality and integrity. This flaw affects rsync versions before 3.2.4. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 969530 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| rsync (PTS) | bullseye | 3.2.3-4+deb11u1 | fixed |
| bullseye (security) | 3.2.3-4+deb11u3 | fixed |
| bookworm, bookworm (security) | 3.2.7-1+deb12u2 | fixed |
| trixie | 3.4.1+ds1-3 | fixed |
| sid | 3.4.1+ds1-4 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| rsync | source | stretch | (not affected) | | | |
| rsync | source | buster | (not affected) | | | |
| rsync | source | (unstable) | 3.2.3-3 | | | 969530 |
Notes
[buster] - rsync <not-affected> (Vulnerable code introduced later)
[stretch] - rsync <not-affected> (Vulnerable code introduced later)
Introduced by: https://git.samba.org/?p=rsync.git;a=commitdiff;h=2a87d78f693f10fe5ad13af0bb9311bd3714077d (v3.2.0pre1)
Fixed by: https://git.samba.org/?p=rsync.git;a=commitdiff;h=c3f7414c450faaf6a8281cc4a4403529aeb7d859
https://bugzilla.redhat.com/show_bug.cgi?id=1875549