CVE-2017-15906

NameCVE-2017-15906
DescriptionThe process_open function in sftp-server.c in OpenSSH before 7.6 does not properly prevent write operations in readonly mode, which allows attackers to create zero-length files.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-1500-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openssh (PTS)buster1:7.9p1-10+deb10u2fixed
buster (security)1:7.9p1-10+deb10u4fixed
bullseye (security), bullseye1:8.4p1-5+deb11u3fixed
bookworm, bookworm (security)1:9.2p1-2+deb12u2fixed
trixie1:9.6p1-4fixed
sid1:9.7p1-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
opensshsourcejessie1:6.7p1-5+deb8u6DLA-1500-1
opensshsourcestretch1:7.4p1-10+deb9u3
opensshsource(unstable)1:7.6p1-1low

Notes

[wheezy] - openssh <no-dsa> (Minor issue)
https://github.com/openbsd/src/commit/a6981567e8e215acc1ef690c8dbb30f2d9b00a19

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