opensuse-su-2020:1769-1
Vulnerability from csaf_opensuse
Published
2020-10-29 17:24
Modified
2020-10-29 17:24
Summary
Security update for singularity
Notes
Title of the patch
Security update for singularity
Description of the patch
This update for singularity fixes the following issues:
Update to new version 3.6.4:
- CVE-2020-15229: Due to insecure handling of path traversal and the lack of path
sanitization within unsquashfs, it is possible to overwrite/create files on the
host filesystem during the extraction of a crafted squashfs filesystem (boo#1177901).
Patchnames
openSUSE-2020-1769
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
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"summary": "SUSE Bug 1177901",
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"title": "Security update for singularity",
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"date": "2020-10-29T17:24:16Z",
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"vulnerabilities": [
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"cve": "CVE-2020-15229",
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"text": "https://www.suse.com/security/cve/CVE-2020-15229"
}
],
"notes": [
{
"category": "general",
"text": "Singularity (an open source container platform) from version 3.1.1 through 3.6.3 has a vulnerability. Due to insecure handling of path traversal and the lack of path sanitization within `unsquashfs`, it is possible to overwrite/create any files on the host filesystem during the extraction with a crafted squashfs filesystem. The extraction occurs automatically for unprivileged (either installation or with `allow setuid = no`) run of Singularity when a user attempt to run an image which is a local SIF image or a single file containing a squashfs filesystem and is coming from remote sources `library://` or `shub://`. Image build is also impacted in a more serious way as it can be used by a root user, allowing an attacker to overwrite/create files leading to a system compromise, so far bootstrap methods `library`, `shub` and `localimage` are triggering the squashfs extraction. This issue is addressed in Singularity 3.6.4. All users are advised to upgrade to 3.6.4 especially if they use Singularity mainly for building image as root user. There is no solid workaround except to temporary avoid to use unprivileged mode with single file images in favor of sandbox images instead. Regarding image build, temporary avoid to build from `library` and `shub` sources and as much as possible use `--fakeroot` or a VM for that.",
"title": "CVE description"
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"summary": "SUSE Bug 1177901 for CVE-2020-15229",
"url": "https://bugzilla.suse.com/1177901"
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],
"remediations": [
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"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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"date": "2020-10-29T17:24:16Z",
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"title": "CVE-2020-15229"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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