CVE-2017-7500

It was found that rpm did not properly handle RPM installations when a destination path was a symbolic link to a directory, possibly changing ownership and permissions of an arbitrary directory, and RPM files being placed in an arbitrary destination. An attacker, with write access to a directory in which a subdirectory will be installed, could redirect that directory to an arbitrary location and gain root privilege.

It was found that rpm did not properly handle RPM installations when a destination path was a symbolic link to a directory, possibly changing ownership and permissions of an arbitrary directory, and RPM files being placed in an arbitrary destination. An attacker, with write access to a directory in which a subdirectory will be installed, could redirect that directory to an arbitrary location and gain root privilege (CVE-2017-7500).

It was found that rpm uses temporary files with predictable names when installing an RPM. An attacker with ability to write in a directory where files will be installed could create symbolic links to an arbitrary location and modify content, and possibly permissions to arbitrary files, which could be used for denial of service or possibly privilege escalation (CVE-2017-7501)

These are all security issues fixed in the librpmbuild9-4.16.1.3-3.2 package on the GA media of openSUSE Tumbleweed.

This update for rpm fixes the following issues:

This security vulnerability was fixed:

• CVE-2017-7500: Fixed symlink attacks during RPM installation (bsc#943457)

This update for rpm fixes the following issues:

These security issues were fixed:

• CVE-2017-7500: rpm did not properly handle RPM installations when a destination path was a symbolic link to a directory, possibly changing ownership and permissions of an arbitrary directory, and RPM files being placed in an arbitrary destination (bsc#943457).
• CVE-2017-7501: rpm used temporary files with predictable names when installing an RPM. An attacker with ability to write in a directory where files will be installed could create symbolic links to an arbitrary location and modify content, and possibly permissions to arbitrary files, which could be used for denial of service or possibly privilege escalation (bsc#943457)

This non-security issue was fixed:

• Use ksym-provides tool [bsc#1077692]

This update for rpm fixes the following issues:

These security issues were fixed:

• CVE-2017-7500: rpm did not properly handle RPM installations when a destination path was a symbolic link to a directory, possibly changing ownership and permissions of an arbitrary directory, and RPM files being placed in an arbitrary destination (bsc#943457).
• CVE-2017-7501: rpm used temporary files with predictable names when installing an RPM. An attacker with ability to write in a directory where files will be installed could create symbolic links to an arbitrary location and modify content, and possibly permissions to arbitrary files, which could be used for denial of service or possibly privilege escalation (bsc#943457)

This is a reissue of the above security fixes for SUSE Linux Enterprise 12 GA, SP1 and SP2 LTSS, they have already been released for SUSE Linux Enterprise Server 12 SP3.

This update for rpm fixes the following issues:

These security issues were fixed:

• CVE-2017-7500: rpm did not properly handle RPM installations when a destination path was a symbolic link to a directory, possibly changing ownership and permissions of an arbitrary directory, and RPM files being placed in an arbitrary destination (bsc#943457).
• CVE-2017-7501: rpm used temporary files with predictable names when installing an RPM. An attacker with ability to write in a directory where files will be installed could create symbolic links to an arbitrary location and modify content, and possibly permissions to arbitrary files, which could be used for denial of service or possibly privilege escalation (bsc#943457)

This is a reissue of the above security fixes for SUSE Linux Enterprise 12 GA, SP1 and SP2 LTSS, they have already been released for SUSE Linux Enterprise Server 12 SP3.