CVE-2018-10877
Linux kernel ext4 filesystem is vulnerable to an out-of-bound access in the ext4_ext_drop_refs() function when operating on a crafted ext4 filesystem image.
02 Description
Linux kernel ext4 filesystem is vulnerable to an out-of-bound access in the ext4_ext_drop_refs() function when operating on a crafted ext4 filesystem image.
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
- 2.22% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 82.4% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
- 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
- 2018-07-18 15:00Z8 YR AGO
- Last updated
- 2024-08-05 07:46Z2 YR AGO
- Reserved
- 2018-05-09
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.3)
- CNA CVSS vector
- CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-125Out-of-bounds ReadBase
- Data version
- 5.1
- Document digest
- e60520102608e4e6f00e0c065c1b730c9397af6bb72abd84b7d2081270504755
05 Affected products
06 References
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10877
- usn.ubuntu.comUSN-3753-2https://usn.ubuntu.com/3753-2/
- usn.ubuntu.comUSN-3754-1https://usn.ubuntu.com/3754-1/
- usn.ubuntu.comUSN-3871-5https://usn.ubuntu.com/3871-5/
- usn.ubuntu.comUSN-3871-4https://usn.ubuntu.com/3871-4/
- 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
- usn.ubuntu.comUSN-3871-1https://usn.ubuntu.com/3871-1/
- www.securityfocus.com106503http://www.securityfocus.com/bid/106503
- usn.ubuntu.comUSN-3753-1https://usn.ubuntu.com/3753-1/
- usn.ubuntu.comUSN-3871-3https://usn.ubuntu.com/3871-3/
- www.securityfocus.com104878http://www.securityfocus.com/bid/104878
07 Fixed in
Debian 12
- linux Fixed in 4.17.3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 4.17.3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 4.17.3-1
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 4.4.0-1028.31
- linux-azure Fixed in 4.15.0-1037.39~14.04.2
- linux-lts-xenial Fixed in 4.4.0-134.160~14.04.1
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 4.4.0-134.160
- linux-aws Fixed in 4.4.0-1066.76
- linux-aws-hwe Fixed in 4.15.0-1032.34~16.04.1
- linux-azure Fixed in 4.15.0-1037.39~16.04.1
- linux-gcp Fixed in 4.15.0-1027.28~16.04.1
- linux-hwe Fixed in 4.15.0-45.48~16.04.1
- linux-kvm Fixed in 4.4.0-1032.38
- linux-raspi2 Fixed in 4.4.0-1095.103
- linux-snapdragon Fixed in 4.4.0-1099.104
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 4.15.0-44.47
- linux-aws Fixed in 4.15.0-1032.34
- linux-azure Fixed in 4.15.0-1037.39
- linux-gcp Fixed in 4.15.0-1027.28
- linux-kvm Fixed in 4.15.0-1029.29
- linux-oem Fixed in 4.15.0-1033.38
- linux-raspi2 Fixed in 4.15.0-1031.33
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.