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Fencer Vulns
critical 9.8

CVE-2017-9800 in the critical feed json

A maliciously constructed svn+ssh:// URL would cause Subversion clients before 1.8.19, 1.9.x before 1.9.7, and 1.10.0.x through 1.10.0-alph…

published 2017-08-11 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-18720

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
18.9%
EPSS 18.9% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

A maliciously constructed svn+ssh:// URL would cause Subversion clients before 1.8.19, 1.9.x before 1.9.7, and 1.10.0.x through 1.10.0-alpha3 to run an arbitrary shell command. Such a URL could be generated by a malicious server, by a malicious user committing to a honest server (to attack another user of that server's repositories), or by a proxy server. The vulnerability affects all clients, including those that use file://, http://, and plain (untunneled) svn://.

Patch / fix

  • subversion Debian 14, Debian 13, Debian 12 1.9.7-1

debian advisories DEBIAN-CVE-2017-9800

  • subversion Ubuntu 14.04 LTS 1.8.8-1ubuntu3.3
  • subversion Ubuntu 16.04 LTS 1.9.3-2ubuntu1.1

ubuntu advisories UBUNTU-CVE-2017-9800

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • subversion RHEL 7 1.7.14-11.el7_4
  • mod_dav_svn RHEL 7 1.7.14-11.el7_4
  • subversion-kde RHEL 7 1.7.14-11.el7_4
  • subversion-libs RHEL 7 1.7.14-11.el7_4
  • subversion-perl RHEL 7 1.7.14-11.el7_4
  • subversion-ruby RHEL 7 1.7.14-11.el7_4
  • subversion-gnome RHEL 7 1.7.14-11.el7_4
  • subversion-tools RHEL 7 1.7.14-11.el7_4

red hat advisories RHSA-2017:2480

  • subversion SLE Software Development Kit 12 SP3, SLE Software Development Kit 12 SP2 1.8.19-25.3.1
  • subversion Studio Onsite 1.3, SLE Software Development Kit 11 SP4 1.6.17-1.36.9.1

suse advisories SUSE-SU-2017:2200-1SUSE-SU-2017:2163-1

  • subversion openSUSE Tumbleweed 1.14.1-1.11

opensuse advisories openSUSE-SU-2024:11412-1

  • subversion Alpine 3.24, Alpine 3.23, Alpine 3.22 +19 more 1.9.7-r0

alpine advisories ALPINE-CVE-2017-9800

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • subversion Arch Linux 1.9.7-1

arch linux advisories AVG-379

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-9800 updated cvss 6.3

subversion: Command injection through clients via malicious svn+ssh URLs

  • Red Hat Enterprise Linux 5 subversion Red Hat Enterprise Linux 6 subversion, mod_dav_svn, subversion-kde, subversion-perl, subversion-ruby, subversion-gnome, +2 more
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client Optional (v. 7) subversion 1.7.14-11.el7_4, mod_dav_svn 1.7.14-11.el7_4, subversion-kde 1.7.14-11.el7_4, subversion-libs 1.7.14-11.el7_4, subversion-perl 1.7.14-11.el7_4, subversion-ruby 1.7.14-11.el7_4, +4 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) subversion 1.7.14-11.el7_4, mod_dav_svn 1.7.14-11.el7_4, subversion-kde 1.7.14-11.el7_4, subversion-libs 1.7.14-11.el7_4, subversion-perl 1.7.14-11.el7_4, subversion-ruby 1.7.14-11.el7_4, +4 more Red Hat Enterprise Linux Server (v. 7) subversion 1.7.14-11.el7_4, mod_dav_svn 1.7.14-11.el7_4, subversion-libs 1.7.14-11.el7_4, subversion-gnome 1.7.14-11.el7_4 Red Hat Enterprise Linux Server Optional (v. 7) subversion-kde 1.7.14-11.el7_4, subversion-perl 1.7.14-11.el7_4, subversion-ruby 1.7.14-11.el7_4, subversion-tools 1.7.14-11.el7_4, subversion-javahl 1.7.14-11.el7_4, subversion-python 1.7.14-11.el7_4 Red Hat Enterprise Linux Workstation (v. 7) subversion 1.7.14-11.el7_4, mod_dav_svn 1.7.14-11.el7_4, subversion-libs 1.7.14-11.el7_4, subversion-gnome 1.7.14-11.el7_4 Red Hat Enterprise Linux Workstation Optional (v. 7) subversion-kde 1.7.14-11.el7_4, subversion-perl 1.7.14-11.el7_4, subversion-ruby 1.7.14-11.el7_4, subversion-tools 1.7.14-11.el7_4, subversion-javahl 1.7.14-11.el7_4, subversion-python 1.7.14-11.el7_4
    fixed: vendor fix RHSA-2017:2480

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

18.89% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Apache Software Foundation Apache Subversion

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.