CVE-2023-0458
Vulnerability Summary
Timeline
Description
A speculative pointer dereference problem exists in the Linux Kernel on the do_prlimit() function. The resource argument value is controlled and is used in pointer arithmetic for the 'rlim' variable and can be used to leak the contents. We recommend upgrading past version 6.1.8 or commit 739790605705ddcf18f21782b9c99ad7d53a8c11
CVSS Metrics
- v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- v3.1•MEDIUM•Score: 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Trends
Current EPSS score: 0.72%• Percentile: 52%
Techniques & Countermeasures
- CWE-476•NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Systems
- debian•linux
< 5.10.178-1 | < 6.1.8-1 | < 6.1.8-1 | < 6.1.8-1
- ubuntu•linux
< 3.13.0-193.244 | < 4.4.0-243.277 | < 4.15.0-209.220 | < 5.4.0-147.164 | < 5.15.0-70.77
- ubuntu•linux-allwinner-5.19
< 5.19.0-1012.12~22.04.1
- ubuntu•linux-aws
< 4.4.0-1121.127 | < 4.4.0-1159.174 | < 4.15.0-1154.167 | < 5.4.0-1100.108 | < 5.15.0-1034.38
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-5.11
all
- ubuntu•linux-aws-5.13
all
- ubuntu•linux-aws-5.15
< 5.15.0-1034.38~20.04.1
- ubuntu•linux-aws-5.3
all
- ubuntu•linux-aws-5.4
< 5.4.0-1100.108~18.04.1
- ubuntu•linux-aws-5.8
all
- ubuntu•linux-aws-fips
< 4.15.0-2093.99 | all | < 5.4.0-1100.108+fips1
- ubuntu•linux-aws-hwe
< 4.15.0-1154.167~16.04.1
- ubuntu•linux-azure
< 4.15.0-1163.178~14.04.1 | < 4.15.0-1163.178~16.04.1 | all | < 5.4.0-1106.112 | < 5.15.0-1036.43
- ubuntu•linux-azure-4.15
< 4.15.0-1163.178
- ubuntu•linux-azure-5.11
all
- ubuntu•linux-azure-5.13
all
- ubuntu•linux-azure-5.15
< 5.15.0-1036.43~20.04.1
- ubuntu•linux-azure-5.19
< 5.19.0-1026.29~22.04.1
- ubuntu•linux-azure-5.3
all
- ubuntu•linux-azure-5.4
< 5.4.0-1106.112~18.04.1
- ubuntu•linux-azure-5.8
all
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde
< 5.15.0-1036.43.1
- ubuntu•linux-azure-fips
< 4.15.0-2072.78 | all | < 5.4.0-1106.112+fips1
- ubuntu•linux-bluefield
all | < 5.4.0-1062.68 | < 5.15.0-1015.17
- ubuntu•linux-dell300x
< 4.15.0-1063.68
- ubuntu•linux-fips
< 4.4.0-1091.98 | all | < 4.15.0-1109.120 | < 5.4.0-1075.84
- ubuntu•linux-gcp
< 4.15.0-1148.164~16.04.1 | all | < 5.4.0-1103.112 | < 5.15.0-1032.40
- ubuntu•linux-gcp-4.15
< 4.15.0-1148.164
- ubuntu•linux-gcp-5.11
all
- ubuntu•linux-gcp-5.13
all
- ubuntu•linux-gcp-5.15
< 5.15.0-1032.40~20.04.1
- ubuntu•linux-gcp-5.19
< 5.19.0-1024.26~22.04.1
- ubuntu•linux-gcp-5.3
all
- ubuntu•linux-gcp-5.4
< 5.4.0-1103.112~18.04.1
- ubuntu•linux-gcp-5.8
all
- ubuntu•linux-gcp-fips
< 4.15.0-2056.61 | all | < 5.4.0-1103.112+fips1
- ubuntu•linux-gke
< 5.4.0-1097.104 | < 5.15.0-1031.36
- ubuntu•linux-gke-4.15
all
- ubuntu•linux-gke-5.15
< 5.15.0-1031.36~20.04.1
- ubuntu•linux-gke-5.4
all
- ubuntu•linux-gkeop
< 5.4.0-1067.71 | < 5.15.0-1018.23
- ubuntu•linux-gkeop-5.15
< 5.15.0-1018.23~20.04.1
- ubuntu•linux-gkeop-5.4
all
- ubuntu•linux-hwe
< 4.15.0-209.220~16.04.1 | all
- ubuntu•linux-hwe-5.11
all
- ubuntu•linux-hwe-5.13
all
- ubuntu•linux-hwe-5.15
< 5.15.0-70.77~20.04.1
- ubuntu•linux-hwe-5.19
< 5.19.0-42.43~22.04.1
Showing first 50 affected entries in server-rendered view.
References (19)
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/diff/kernel/sys.c?id=v6.1.8&id2=v6.1.7
- https://github.com/torvalds/linux/commit/739790605705ddcf18f21782b9c99ad7d53a8c11
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
- https://ubuntu.com/security/CVE-2023-0458
- https://github.com/google/security-research/security/advisories/GHSA-m7j5-797w-vmrh
- https://git.kernel.org/linus/739790605705ddcf18f21782b9c99ad7d53a8c11
- https://ubuntu.com/security/notices/USN-6079-1
- https://ubuntu.com/security/notices/USN-6091-1
- https://ubuntu.com/security/notices/USN-6093-1
- https://ubuntu.com/security/notices/USN-6096-1
- https://ubuntu.com/security/notices/USN-6134-1
- https://ubuntu.com/security/notices/USN-6222-1
- https://ubuntu.com/security/notices/USN-6254-1
- https://ubuntu.com/security/notices/USN-6256-1
- https://ubuntu.com/security/notices/USN-6341-1
- https://ubuntu.com/security/notices/USN-6385-1
- https://www.cve.org/CVERecord?id=CVE-2023-0458
- https://security-tracker.debian.org/tracker/CVE-2023-0458