CVE-2018-1000204
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2018-1000204
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-1000204.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2018-1000204
- Related
- Withdrawn
- 2019-05-20T14:06:09Z
- Published
- 2018-06-26T14:29:02Z
- Modified
- 2024-09-18T01:00:20Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
Linux Kernel version 3.18 to 4.16 incorrectly handles an SGIO ioctl on /dev/sg0 with dxferdirection=SGDXFERFROMDEV and an empty 6-byte cmdp. This may lead to copying up to 1000 kernel heap pages to the userspace. This has been fixed upstream in https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824 already. The problem has limited scope, as users don't usually have permissions to access SCSI devices. On the other hand, e.g. the Nero user manual suggests doing
chmod o+r+w /dev/sg*to make the devices accessible. NOTE: third parties dispute the relevance of this report, noting that the requirement for an attacker to have both the CAPSYSADMIN and CAPSYS_RAWIO capabilities makes it "virtually impossible to exploit. - References
-
- https://access.redhat.com/errata/RHSA-2018:2948
- http://www.openwall.com/lists/oss-security/2018/06/26/3
- https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html
- https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html
- https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html
- https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
- https://usn.ubuntu.com/3696-1/
- https://usn.ubuntu.com/3696-2/
- https://usn.ubuntu.com/3752-1/
- https://usn.ubuntu.com/3752-2/
- https://usn.ubuntu.com/3752-3/
- https://usn.ubuntu.com/3754-1/
- https://security-tracker.debian.org/tracker/CVE-2018-1000204
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source