DEBIAN-CVE-2020-12062

Source
https://security-tracker.debian.org/tracker/CVE-2020-12062
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12062.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2020-12062
Upstream
Published
2020-06-01T16:15:14Z
Modified
2025-09-30T03:54:32Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

The scp client in OpenSSH 8.2 incorrectly sends duplicate responses to the server upon a utimes system call failure, which allows a malicious unprivileged user on the remote server to overwrite arbitrary files in the client's download directory by creating a crafted subdirectory anywhere on the remote server. The victim must use the command scp -rp to download a file hierarchy containing, anywhere inside, this crafted subdirectory. NOTE: the vendor points out that "this attack can achieve no more than a hostile peer is already able to achieve within the scp protocol" and "utimes does not fail under normal circumstances.

References

Affected packages

Debian:11 / openssh

Package

Name
openssh
Purl
pkg:deb/debian/openssh?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:8.3p1-1

Ecosystem specific

{
    "urgency": "unimportant"
}

Debian:12 / openssh

Package

Name
openssh
Purl
pkg:deb/debian/openssh?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:8.3p1-1

Ecosystem specific

{
    "urgency": "unimportant"
}

Debian:13 / openssh

Package

Name
openssh
Purl
pkg:deb/debian/openssh?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:8.3p1-1

Ecosystem specific

{
    "urgency": "unimportant"
}

Debian:14 / openssh

Package

Name
openssh
Purl
pkg:deb/debian/openssh?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:8.3p1-1

Ecosystem specific

{
    "urgency": "unimportant"
}