CVE-2019-13233
In arch/x86/lib/insn-eval.c in the Linux kernel before 5.1.9, there is a use-after-free for access to an LDT entry because of a race condition between modify_ldt() and a #BR exception for an MPX
02 Description
In arch/x86/lib/insn-eval.c in the Linux kernel before 5.1.9, there is a use-after-free for access to an LDT entry because of a race condition between modify_ldt() and a #BR exception for an MPX
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
- 0.48% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 41.6% of scored records. A rank, not a probability.
- NVD base score
- 7.0 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. 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
- 2019-07-04 12:27Z7 YR AGO
- Last updated
- 2024-08-04 23:49Z2 YR AGO
- Reserved
- 2019-07-04
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 9dd7e4f5c6a7ae3bf951ca2a562a7b08585b4442fa4af8f20dc0c79d86b27241
05 Affected products
06 References
- bugs.chromium.orghttps://bugs.chromium.org/p/project-zero/issues/detail?id=1879
- cdn.kernel.orghttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.9
- github.comhttps://github.com/torvalds/linux/commit/de9f869616dd95e95c00bdd6b0fcd3421e8a4323
- git.kernel.orghttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=de9f869616dd95e95c00bdd6b0fcd3421e8a4323
- lists.opensuse.orgopenSUSE-SU-2019:1757http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20190806-0001/
- www.debian.orgDSA-4495https://www.debian.org/security/2019/dsa-4495
- seclists.org20190812 [SECURITY] [DSA 4495-1] linux security updatehttps://seclists.org/bugtraq/2019/Aug/13
- usn.ubuntu.comUSN-4093-1https://usn.ubuntu.com/4093-1/
- usn.ubuntu.comUSN-4094-1https://usn.ubuntu.com/4094-1/
- usn.ubuntu.comUSN-4117-1https://usn.ubuntu.com/4117-1/
- usn.ubuntu.comUSN-4118-1https://usn.ubuntu.com/4118-1/
- packetstormsecurity.comhttp://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html
- support.f5.comhttps://support.f5.com/csp/article/K13331647?utm_source=f5support&%3Butm_medium=RSS
- access.redhat.comRHSA-2019:3309https://access.redhat.com/errata/RHSA-2019:3309
- access.redhat.comRHSA-2019:3517https://access.redhat.com/errata/RHSA-2019:3517
07 Fixed in
Debian 12
- linux Fixed in 5.2.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 5.2.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 5.2.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux-aws-hwe Fixed in 4.15.0-1047.49~16.04.1
- linux-azure Fixed in 4.15.0-1055.60
- linux-gcp Fixed in 4.15.0-1040.42~16.04.1
- linux-hwe Fixed in 4.15.0-58.64~16.04.1
- linux-oracle Fixed in 4.15.0-1021.23~16.04.1
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 4.15.0-58.64
- linux-aws Fixed in 4.15.0-1047.49
- linux-azure Fixed in 5.0.0-1014.14~18.04.1
- linux-gcp Fixed in 4.15.0-1040.42
- linux-gke-4.15 Fixed in 4.15.0-1040.42
- linux-hwe Fixed in 5.0.0-25.26~18.04.1
- linux-hwe-edge No fix yet
- linux-kvm Fixed in 4.15.0-1042.42
- linux-oem Fixed in 4.15.0-1050.57
- linux-oem-osp1 Fixed in 5.0.0-1018.20
- linux-oracle Fixed in 4.15.0-1021.23
- linux-raspi2 Fixed in 4.15.0-1043.46
- linux-snapdragon Fixed in 4.15.0-1060.66
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-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-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 14.04 LTS
- linux-azure Fixed in 4.15.0-1059.64~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 18.04 LTS
- linux-aws-fips Fixed in 4.15.0-2018.18Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 4.15.0-2006.7Available 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.
Ubuntu Pro FIPS 18.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-gcp-fips No fix yet
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.