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===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2020.4134
Security update for podman
20 November 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: podman
Publisher: SUSE
Operating System: SUSE
Impact/Access: Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-14370
Reference: ESB-2020.3998
ESB-2020.3699
Original Bulletin:
https://www.suse.com/support/update/announcement/2020/suse-su-20203378-1
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SUSE Security Update: Security update for podman
______________________________________________________________________________
Announcement ID: SUSE-SU-2020:3378-1
Rating: moderate
References: #1176804 #1178122 #1178392
Cross-References: CVE-2020-14370
Affected Products:
SUSE Linux Enterprise Module for Containers 15-SP2
SUSE Linux Enterprise Module for Containers 15-SP1
SUSE Enterprise Storage 7
______________________________________________________________________________
An update that solves one vulnerability and has two fixes is now available.
Description:
This update for podman fixes the following issues:
Security issue fixed:
o This release resolves CVE-2020-14370, in which environment variables could
be leaked between containers created using the Varlink API (bsc#1176804).
Non-security issues fixed:
o add dependency to timezone package or podman fails to build a container
(bsc#1178122)
o Install new auto-update system units
o Update to v2.1.1 (bsc#1178392): * Changes - The `podman info` command now
includes the cgroup manager Podman is using. * API - The REST API now
includes a Server header in all responses. - Fixed a bug where the Libpod
and Compat Attach endpoints could terminate early, before sending all
output from the container. - Fixed a bug where the Compat Create endpoint
for containers did not properly handle the Interactive parameter. - Fixed a
bug where the Compat Kill endpoint for containers could continue to run
after a fatal error. - Fixed a bug where the Limit parameter of the Compat
List endpoint for Containers did not properly handle a limit of 0
(returning nothing, instead of all containers) [#7722]. - The Libpod Stats
endpoint for containers is being deprecated and will be replaced by a
similar endpoint with additional features in a future release.
o Changes in v2.1.0 * Features - A new command, `podman image mount`, has
been added. This allows for an image to be mounted, read-only, to inspect
its contents without creating a container from it [#1433]. - The `podman
save` and `podman load` commands can now create and load archives
containing multiple images [#2669]. - Rootless Podman now supports all
`podman network` commands, and rootless containers can now be joined to
networks. - The performance of `podman build` on `ADD` and `COPY`
instructions has been greatly improved, especially when a `.dockerignore`
is present. - The `podman run` and `podman create` commands now support a
new mode for the `--cgroups` option, `--cgroups=split`. Podman will create
two cgroups under the cgroup it was launched in, one for the container and
one for Conmon. This mode is useful for running Podman in a systemd unit,
as it ensures that all processes are retained in systemd's cgroup hierarchy
[#6400]. - The `podman run` and `podman create` commands can now specify
options to slirp4netns by using the `--network` option as follows:
`--net slirp4netns:opt1,opt2`. This allows for, among other things, switching
the port forwarder used by slirp4netns away from rootlessport. - The `podman ps
` command now features a new option, `--storage`, to show containers from
Buildah, CRI-O and other applications. - The `podman run` and `podman create`
commands now feature a `--sdnotify` option to control the behavior of systemd's
sdnotify with containers, enabling improved support for Podman in `Type=notify`
units. - The `podman run` command now features a `--preserve-fds` opton to pass
file descriptors from the host into the container [#6458]. - The `podman run`
and `podman create` commands can now create overlay volume mounts, by adding
the `:O` option to a bind mount (e.g. `-v /test:/test:O`). Overlay volume
mounts will mount a directory into a container from the host and allow changes
to it, but not write those changes back to the directory on the host. - The
`podman play kube` command now supports the Socket HostPath type [#7112]. - The
`podman play kube` command now supports read-only mounts. - The `podman play
kube` command now supports setting labels on pods from Kubernetes metadata
labels. - The `podman play kube` command now supports setting container restart
policy [#7656]. - The `podman play kube` command now properly handles
`HostAlias` entries. - The `podman generate kube` command now adds entries to
`/etc/hosts` from `--host-add` generated YAML as `HostAlias` entries. - The
`podman play kube` and `podman generate kube` commands now properly support
`shareProcessNamespace` to share the PID namespace in pods. - The `podman
volume ls` command now supports the `dangling` filter to identify volumes that
are dangling (not attached to any container). - The `podman run` and `podman
create` commands now feature a `--umask` option to set the umask of the created
container. - The `podman create` and `podman run` commands now feature a `--tz`
option to set the timezone within the container [#5128]. - Environment
variables for Podman can now be added in the `containers.conf` configuration
file. - The `--mount` option of `podman run` and `podman create` now supports a
new mount type, `type=devpts`, to add a `devpts` mount to the container. This
is useful for containers that want to mount `/dev/` from the host into the
container, but still create a terminal. - The `--security-opt` flag to `podman
run` and `podman create` now supports a new option, `proc-opts`, to specify
options for the container's `/proc` filesystem. - Podman with the `crun` OCI
runtime now supports a new option to `podman run` and `podman create`,
`--cgroup-conf`, which allows for advanced configuration of cgroups on cgroups
v2 systems. - The `podman create` and `podman run` commands now support a
`--override-variant` option, to override the architecture variant of the image
that will be pulled and ran. - A new global option has been added to Podman,
`--runtime-flags`, which allows for setting flags to use when the OCI runtime
is called. - The `podman manifest add` command now supports the `--cert-dir`,
`--auth-file`, `--creds`, and `--tls-verify` options. * Security - This release
resolves CVE-2020-14370, in which environment variables could be leaked between
containers created using the Varlink API. * Changes - Podman will now retry
pulling an image 3 times if a pull fails due to network errors. - The `podman
exec` command would previously print error messages (e.g. `exec session exited
with non-zero exit code -1`) when the command run exited with a non-0 exit
code. It no longer does this. The `podman exec` command will still exit with
the same exit code as the command run in the container did. - Error messages
when creating a container or pod with a name that is already in use have been
improved. - For read-only containers running systemd init, Podman creates a
tmpfs filesystem at `/run`. This was previously limited to 65k in size and
mounted `noexec`, but is now unlimited size and mounted `exec`. - The `podman
system reset` command no longer removes configuration files for rootless
Podman. * API - The Libpod API version has been bumped to v2.0.0 due to a
breaking change in the Image List API. - Docker-compatible Volume Endpoints
(Create, Inspect, List, Remove, Prune) are now available! - Added an endpoint
for generating systemd unit files for containers. - The `last` parameter to the
Libpod container list endpoint now has an alias, `limit` [#6413]. - The Libpod
image list API new returns timestamps in Unix format, as integer, as opposed to
as strings - The Compat Inspect endpoint for containers now includes port
information in NetworkSettings. - The Compat List endpoint for images now
features limited support for the (deprecated) `filter` query parameter [#6797].
- - Fixed a bug where the Compat Create endpoint for containers was not correctly
handling bind mounts. - Fixed a bug where the Compat Create endpoint for
containers would not return a 404 when the requested image was not present. -
Fixed a bug where the Compat Create endpoint for containers did not properly
handle Entrypoint and Command from images. - Fixed a bug where name history
information was not properly added in the Libpod Image List endpoint. - Fixed a
bug where the Libpod image search endpoint improperly populated the Description
field of responses. - Added a `noTrunc` option to the Libpod image search
endpoint. - Fixed a bug where the Pod List API would return null, instead of an
empty array, when no pods were present [#7392]. - Fixed a bug where endpoints
that hijacked would do perform the hijack too early, before being ready to send
and receive data [#7195]. - Fixed a bug where Pod endpoints that can operate on
multiple containers at once (e.g. Kill, Pause, Unpause, Stop) would not forward
errors from individual containers that failed. - The Compat List endpoint for
networks now supports filtering results [#7462]. - Fixed a bug where the Top
endpoint for pods would return both a 500 and 404 when run on a non-existent
pod. - Fixed a bug where Pull endpoints did not stream progress back to the
client. - The Version endpoints (Libpod and Compat) now provide version in a
format compatible with Docker. - All non-hijacking responses to API requests
should not include headers with the version of the server. - Fixed a bug where
Libpod and Compat Events endpoints did not send response headers until the
first event occurred [#7263]. - Fixed a bug where the Build endpoints (Compat
and Libpod) did not stream progress to the client. - Fixed a bug where the
Stats endpoints (Compat and Libpod) did not properly handle clients
disconnecting. - Fixed a bug where the Ignore parameter to the Libpod Stop
endpoint was not performing properly. - Fixed a bug where the Compat Logs
endpoint for containers did not stream its output in the correct format [#
7196].
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
o SUSE Linux Enterprise Module for Containers 15-SP2:
zypper in -t patch SUSE-SLE-Module-Containers-15-SP2-2020-3378=1
o SUSE Linux Enterprise Module for Containers 15-SP1:
zypper in -t patch SUSE-SLE-Module-Containers-15-SP1-2020-3378=1
o SUSE Enterprise Storage 7:
zypper in -t patch SUSE-Storage-7-2020-3378=1
Package List:
o SUSE Linux Enterprise Module for Containers 15-SP2 (aarch64 ppc64le s390x
x86_64):
? podman-2.1.1-4.28.1
o SUSE Linux Enterprise Module for Containers 15-SP2 (noarch):
? podman-cni-config-2.1.1-4.28.1
o SUSE Linux Enterprise Module for Containers 15-SP1 (aarch64 ppc64le s390x
x86_64):
? podman-2.1.1-4.28.1
o SUSE Linux Enterprise Module for Containers 15-SP1 (noarch):
? podman-cni-config-2.1.1-4.28.1
o SUSE Enterprise Storage 7 (aarch64 x86_64):
? podman-2.1.1-4.28.1
References:
o https://www.suse.com/security/cve/CVE-2020-14370.html
o https://bugzilla.suse.com/1176804
o https://bugzilla.suse.com/1178122
o https://bugzilla.suse.com/1178392
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