Medium severity5.3OSV Advisory· Published Jan 10, 2019· Updated Jun 17, 2026

CVE-2018-20685

Description

In OpenSSH 7.9, scp.c in the scp client allows remote SSH servers to bypass intended access restrictions via the filename of . or an empty filename. The impact is modifying the permissions of the target directory on the client side.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

OpenBSD/OpenSSHOSV2 versions
ABOUT_TO_ADD_INET_ATON, AFTER_FREEBSD_PAM_MERGE, AFTER_KRB5_GSSAPI_MERGE, …+ 1 more
- (no CPE)range: ABOUT_TO_ADD_INET_ATON, AFTER_FREEBSD_PAM_MERGE, AFTER_KRB5_GSSAPI_MERGE, …
- cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*range: <=7.9
NetApp/Cloud Backup
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
NetApp/Element Software
cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:*
NetApp/Ontap Select Deploy
cpe:2.3:a:netapp:ontap_select_deploy:-:*:*:*:*:*:*:*
NetApp/Steelstore Cloud Integrated Storage
cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
NetApp/Storage Automation Store
cpe:2.3:a:netapp:storage_automation_store:-:*:*:*:*:*:*:*
Winscp/Winscp
cpe:2.3:a:winscp:winscp:*:*:*:*:*:*:*:*
Range: <=5.13
Canonical/Ubuntu Linux4 versions
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*+ 3 more
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
Debian/linux2 versions
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Fujitsu/M10 1 Firmware
cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:*
Range: <xcp2361
Fujitsu/M10 4 Firmware
cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:*
Range: <xcp2361
Fujitsu/M10 4s Firmware
cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:*
Range: <xcp2361
Fujitsu/M12 1 Firmware
cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:*
Range: <xcp2361
Fujitsu/M12 2 Firmware
cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:*
Range: <xcp2361
Fujitsu/M12 2s Firmware
cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:*
Range: <xcp2361
Oracle Corporation/Solaris
cpe:2.3:o:oracle:solaris:10:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Server2 versions
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Eus4 versions
cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Server Aus3 versions
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Server Tus3 versions
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:*
Siemens Foundation/Scalance X204rna Eec Firmware
cpe:2.3:o:siemens:scalance_x204rna_eec_firmware:*:*:*:*:*:*:*:*
Range: <3.2.7
Siemens Foundation/Scalance X204rna Firmware
cpe:2.3:o:siemens:scalance_x204rna_firmware:*:*:*:*:*:*:*:*
Range: <3.2.7
OpenSSH/OpenSSHllm-fuzzy
Range: <=7.9
osv-coords37 versions
pkg:rpm/opensuse/openssh&distro=openSUSE%20Leap%2015.0 pkg:rpm/opensuse/openssh&distro=openSUSE%20Tumbleweed pkg:rpm/suse/openssh&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4 pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015 pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015 pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4 pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/openssh&distro=SUSE%20OpenStack%20Cloud%207 pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4 pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015 pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4 pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20OpenStack%20Cloud%207
< 7.6p1-lp150.8.9.1+ 36 more
- (no CPE)range: < 7.6p1-lp150.8.9.1
- (no CPE)range: < 8.4p1-7.4
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.6p1-9.13.1
- (no CPE)range: < 7.6p1-9.13.1
- (no CPE)range: < 6.6p1-36.12.1
- (no CPE)range: < 6.6p1-54.26.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 6.6p1-54.26.1
- (no CPE)range: < 6.6p1-36.12.1
- (no CPE)range: < 6.6p1-54.26.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.6p1-9.13.1
- (no CPE)range: < 6.6p1-36.12.1
- (no CPE)range: < 6.6p1-54.26.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 6.6p1-54.26.1
- (no CPE)range: < 6.6p1-36.12.1
- (no CPE)range: < 6.6p1-54.26.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1
- (no CPE)range: < 7.2p2-74.35.1

Patches

Vulnerability mechanics

References

cert-portal.siemens.com/productcert/pdf/ssa-412672.pdfnvdPatchThird Party Advisory
cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/scp.c.diffnvdPatch
github.com/openssh/openssh-portable/commit/6010c0303a422a9c5fa8860c061bf7105eb7f8b2nvdPatch
sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txtnvdPatchThird Party Advisory
www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlnvdPatchThird Party Advisory
www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlnvdPatchThird Party Advisory
access.redhat.com/errata/RHSA-2019:3702nvdThird Party Advisory
lists.debian.org/debian-lts-announce/2019/03/msg00030.htmlnvdMailing ListThird Party Advisory
security.gentoo.org/glsa/201903-16nvdThird Party Advisory
security.gentoo.org/glsa/202007-53nvdThird Party Advisory
security.netapp.com/advisory/ntap-20190215-0001/nvdThird Party Advisory
usn.ubuntu.com/3885-1/nvdThird Party Advisory
www.debian.org/security/2019/dsa-4387nvdThird Party Advisory
www.securityfocus.com/bid/106531nvdBroken Link

News mentions

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