CVE-2018-1000204
Linux Kernel version 3.18 to 4.16 incorrectly handles an SG_IO ioctl on /dev/sg0 with dxfer_direction=SG_DXFER_FROM_DEV and an empty 6-byte cmdp. This may lead to copying up to 1000 kernel heap pages
02 Description
Linux Kernel version 3.18 to 4.16 incorrectly handles an SG_IO ioctl on /dev/sg0 with dxfer_direction=SG_DXFER_FROM_DEV and an empty 6-byte cmdp. This may lead to copying up to 1000 kernel heap pages
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.91% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 79.6% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-06-26 14:00Z8 YR AGO
- Last updated
- 2024-08-05 12:40Z2 YR AGO
- Reserved
- 2018-06-08
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass
- Data version
- 5.1
- Document digest
- 4fce66b1a9b5e779b9a64b2e4a23f3d86c74f955a58c00ee9d426030090d8cd3
05 Affected products
06 References
- usn.ubuntu.comUSN-3752-2https://usn.ubuntu.com/3752-2/
- lists.debian.org[debian-lts-announce] 20180714 [SECURITY] [DLA 1422-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2018/07/msg00015.html
- usn.ubuntu.comUSN-3696-1https://usn.ubuntu.com/3696-1/
- usn.ubuntu.comUSN-3752-3https://usn.ubuntu.com/3752-3/
- lists.debian.org[debian-lts-announce] 20180715 [SECURITY] [DLA 1422-2] linux security updatehttps://lists.debian.org/debian-lts-announce/2018/07/msg00016.html
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2018/06/26/3
- usn.ubuntu.comUSN-3754-1https://usn.ubuntu.com/3754-1/
- lists.debian.org[debian-lts-announce] 20180718 [SECURITY] [DLA 1423-1] linux-4.9 new packagehttps://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
- access.redhat.comRHSA-2018:2948https://access.redhat.com/errata/RHSA-2018:2948
- github.comhttps://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824
- usn.ubuntu.comUSN-3696-2https://usn.ubuntu.com/3696-2/
- usn.ubuntu.comUSN-3752-1https://usn.ubuntu.com/3752-1/
- lists.opensuse.orgopenSUSE-SU-2019:1407http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html
07 Fixed in
Debian 12
- linux Fixed in 4.16.12-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 4.16.12-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 4.16.12-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- linux Fixed in 3.13.0-157.207
- linux-aws Fixed in 4.4.0-1024.25
- linux-lts-xenial Fixed in 4.4.0-130.156~14.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux Fixed in 4.4.0-130.156
- linux-aws Fixed in 4.4.0-1062.71
- linux-azure Fixed in 4.15.0-1022.22~16.04.1
- linux-gcp Fixed in 4.15.0-1018.19~16.04.2
- linux-hwe Fixed in 4.15.0-33.36~16.04.1
- linux-kvm Fixed in 4.4.0-1029.34
- linux-raspi2 Fixed in 4.4.0-1092.100
- linux-snapdragon Fixed in 4.4.0-1095.100
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux Fixed in 4.15.0-33.36
- linux-aws Fixed in 4.15.0-1020.20
- linux-azure Fixed in 4.15.0-1022.23
- linux-gcp Fixed in 4.15.0-1018.19
- linux-kvm Fixed in 4.15.0-1020.20
- linux-oem Fixed in 4.15.0-1017.20
- linux-raspi2 Fixed in 4.15.0-1021.23
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux-azure-fde No fix yet
- linux-gke No fix yet
- linux-raspi2 No fix yet
- linux-riscv No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux-intel-iot-realtime No fix yet
- linux-realtime No fix yet
- linux-riscv No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux-azure-6.11 No fix yet
- linux-gcp-6.11 No fix yet
- linux-hwe-6.11 No fix yet
- linux-lowlatency-hwe-6.11 No fix yet
- linux-raspi-realtime No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- linux-azure-fde-5.15 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 16.04 LTS
- linux-fips Fixed in 4.4.0-1008.10Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.