CVE-2023-0458: Spectre V1 Gadget in do_prlimit in the Linux Kernel

Modified

AliasesUBUNTU-CVE-2023-0458DEBIAN-CVE-2023-0458

Published 26-04-2023Last modified 13-02-2025

Vulnerability summary

CVE-2023-0458 is a medium (CVSS 5.3) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 54.1% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

5.3/10

010

Medium · v3.1 (CVE.org)

EPSS score

0.73%

0%100%

Low · +0.01 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 19 · Related 9

DLA-3403-1 DLA-3404-1 RHSA-2023:4377 RHSA-2023:4378 RHSA-2023:4801 RHSA-2023:4814+13 more

Timeline

26-04-2023
PublishedVulnerability first disclosed.
13-02-2025
Last modifiedVulnerability information updated.

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

5 scores · 4 sources · 2 versions

v4.02.0v3.15.3

EPSS trend

Probability

0.73%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.72% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-476NULL Pointer DereferenceThe product dereferences a pointer that it expects to be valid but is NULL.

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu93 products

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
linux-allwinner-5.19< 5.19.0-1012.12~22.04.1
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
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11All versions (No fix recorded)

linux-aws-5.13All versions (No fix recorded)
linux-aws-5.15< 5.15.0-1034.38~20.04.1
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1100.108~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-fips< 4.15.0-2093.99 | All versions (No fix recorded) | < 5.4.0-1100.108+fips1
linux-aws-hwe< 4.15.0-1154.167~16.04.1
linux-azure< 4.15.0-1163.178~14.04.1 | < 4.15.0-1163.178~16.04.1 | All versions (No fix recorded) | < 5.4.0-1106.112 | < 5.15.0-1036.43
linux-azure-4.15< 4.15.0-1163.178
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1036.43~20.04.1
linux-azure-5.19< 5.19.0-1026.29~22.04.1
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1106.112~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fde< 5.15.0-1036.43.1
linux-azure-fips< 4.15.0-2072.78 | All versions (No fix recorded) | < 5.4.0-1106.112+fips1
linux-bluefield< 5.4.0-1062.68 | < 5.15.0-1015.17
linux-dell300x< 4.15.0-1063.68
linux-fips< 4.4.0-1091.98 | All versions (No fix recorded) | < 4.15.0-1109.120 | < 5.4.0-1075.84
linux-gcp< 4.15.0-1148.164~16.04.1 | All versions (No fix recorded) | < 5.4.0-1103.112 | < 5.15.0-1032.40
linux-gcp-4.15< 4.15.0-1148.164
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1032.40~20.04.1
linux-gcp-5.19< 5.19.0-1024.26~22.04.1
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1103.112~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-fips< 4.15.0-2056.61 | All versions (No fix recorded) | < 5.4.0-1103.112+fips1
linux-gke< 5.4.0-1097.104 | < 5.15.0-1031.36
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15< 5.15.0-1031.36~20.04.1
linux-gke-5.4All versions (No fix recorded)
linux-gkeop< 5.4.0-1067.71 | < 5.15.0-1018.23
linux-gkeop-5.15< 5.15.0-1018.23~20.04.1
linux-gkeop-5.4All versions (No fix recorded)
linux-hwe< 4.15.0-209.220~16.04.1 | All versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.15< 5.15.0-70.77~20.04.1
linux-hwe-5.19< 5.19.0-42.43~22.04.1
linux-hwe-5.4< 5.4.0-147.164~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1047.52 | < 5.15.0-1028.31
linux-ibm-5.4< 5.4.0-1047.52~18.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtime< 5.15.0-1024.29
linux-intel-iotg< 5.15.0-1028.33
linux-intel-iotg-5.15< 5.15.0-1030.35~20.04.1
linux-iot< 5.4.0-1017.18
linux-kvm< 4.4.0-1122.132 | < 4.15.0-1138.143 | < 5.4.0-1089.95 | < 5.15.0-1031.36
linux-lowlatency< 5.15.0-70.77
linux-lowlatency-hwe-5.15< 5.15.0-70.77~20.04.1
linux-lowlatency-hwe-5.19< 5.19.0-1024.25~22.04.1
linux-lts-xenial< 4.4.0-243.277~14.04.1
linux-nvidia< 5.15.0-1023.23
linux-nvidia-tegra-5.15< 5.15.0-1014.14~20.04.1
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14All versions (No fix recorded)
linux-oem-5.17All versions (No fix recorded)
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0< 6.0.0-1021.21
linux-oem-6.1< 6.1.0-1008.8
linux-oracle< 4.15.0-1117.128~16.04.1 | < 4.15.0-1117.128 | < 5.4.0-1099.108 | < 5.15.0-1033.39
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11All versions (No fix recorded)
linux-oracle-5.13All versions (No fix recorded)
linux-oracle-5.15< 5.15.0-1033.39~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1099.108~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1083.94 | < 5.15.0-1027.29
linux-raspi-5.4< 5.4.0-1083.94~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2< 4.15.0-1130.138 | All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1036.39
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1031.35~20.04.1
linux-riscv-5.8All versions (No fix recorded)
linux-snapdragon< 4.15.0-1148.158
linux-xilinx-zynqmp< 5.4.0-1024.28

Show all 93

Debian2 products

linux< 6.1.8-1
debian_linuxEOL10.0

Linux1 product

linux_kernel≤ 6.1.8 | < 6.1.8 | 6.2:rc1 | 6.2:rc2 | 6.2:rc3 | 6.2:rc4

3 vendors · 96 products

References

20 links

git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/diff/kernel/sys.c?id=v6.1.8&id2=v6.1.7Patch
github.com/torvalds/linux/commit/739790605705ddcf18f21782b9c99ad7d53a8c11Patch
lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlMailing ListThird Party Advisory
lists.debian.org/debian-lts-announce/2023/05/msg00006.htmlMailing ListThird Party Advisory
ubuntu.com/security/CVE-2023-0458REPORT
github.com/google/security-research/security/advisories/GHSA-m7j5-797w-vmrhREPORT
git.kernel.org/linus/739790605705ddcf18f21782b9c99ad7d53a8c11REPORT
ubuntu.com/security/notices/USN-6079-1Advisory
ubuntu.com/security/notices/USN-6091-1Advisory
ubuntu.com/security/notices/USN-6093-1Advisory

Show all 20 references

ubuntu.com/security/notices/USN-6096-1Advisory
ubuntu.com/security/notices/USN-6134-1Advisory
ubuntu.com/security/notices/USN-6222-1Advisory
ubuntu.com/security/notices/USN-6254-1Advisory
ubuntu.com/security/notices/USN-6256-1Advisory
ubuntu.com/security/notices/USN-6341-1Advisory
ubuntu.com/security/notices/USN-6385-1Advisory
www.cve.org/CVERecord?id=CVE-2023-0458REPORT
security-tracker.debian.org/tracker/CVE-2023-0458Advisory
nvd.nist.gov/vuln/detail/CVE-2023-0458OvalAdvisory