CVE-2022-40768: debian debian_linux Use of Uninitialized Resource

Modified

AliasesUBUNTU-CVE-2022-40768DEBIAN-CVE-2022-40768

Published 18-09-2022Last modified 14-10-2026

Vulnerability summary

CVE-2022-40768 is a medium (CVSS 5.5) Use of Uninitialized Resource vulnerability in debian debian_linux. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 22.7% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

5.5/10

010

Medium · v3.1 (NVD)

EPSS score

0.30%

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

Timeline

18-09-2022
PublishedVulnerability first disclosed.
14-10-2026
Last modifiedVulnerability information updated.

Description

drivers/scsi/stex.c in the Linux kernel through 5.19.9 allows local users to obtain sensitive information from kernel memory because stex_queuecommand_lck lacks a memset for the PASSTHRU_CMD case.

CVSS metrics

3 scores · 3 sources · 1 version

v3.15.5

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.29% 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-908Use of Uninitialized ResourceThe product uses or accesses a resource that has not been initialized.

Affected systems

Version check

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

Ubuntu85 products

linuxAll versions (No fix recorded) | < 4.4.0-235.269 | < 4.15.0-197.208 | < 5.4.0-132.148 | < 5.15.0-53.59
linux-aws< 4.4.0-1114.120 | < 4.4.0-1152.167 | < 4.15.0-1143.155 | < 5.4.0-1089.97 | < 5.15.0-1023.27
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< 5.15.0-1023.27~20.04.1
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1089.97~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-fips< 4.15.0-2082.88 | All versions (No fix recorded) | < 5.4.0-1089.97+fips1
linux-aws-hwe< 4.15.0-1143.155~16.04.1
linux-azure< 4.15.0-1157.172~14.04.2 | < 4.15.0-1159.174~16.04.1 | All versions (No fix recorded) | < 5.4.0-1095.101 | < 5.15.0-1023.29
linux-azure-4.15< 4.15.0-1157.172
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1023.29~20.04.1
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1095.101~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fde< 5.15.0-1024.30.1
linux-azure-fips< 4.15.0-2066.72 | All versions (No fix recorded) | < 5.4.0-1095.101+fips1
linux-bluefield< 5.4.0-1050.56
linux-dell300x< 4.15.0-1055.60
linux-fips< 4.4.0-1084.91 | All versions (No fix recorded) | < 4.15.0-1100.111 | < 5.4.0-1065.74
linux-gcp< 4.15.0-1138.154~16.04.1 | All versions (No fix recorded) | < 5.4.0-1093.102 | < 5.15.0-1022.29
linux-gcp-4.15< 4.15.0-1138.154
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1022.29~20.04.1
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1093.102~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-fips< 4.15.0-2047.52 | All versions (No fix recorded) | < 5.4.0-1093.102+fips1
linux-gke< 5.4.0-1087.94 | < 5.15.0-1020.25
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15< 5.15.0-1020.25~20.04.1
linux-gke-5.4All versions (No fix recorded)
linux-gkeop< 5.4.0-1057.61 | < 5.15.0-1008.12
linux-gkeop-5.15< 5.15.0-1008.12~20.04.1
linux-gkeop-5.4All versions (No fix recorded)
linux-hwe< 4.15.0-197.208~16.04.1 | 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< 5.15.0-53.59~20.04.1
linux-hwe-5.4< 5.4.0-132.148~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1037.42 | < 5.15.0-1018.21
linux-ibm-5.4< 5.4.0-1037.42~18.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-intel-iotg< 5.15.0-1018.23
linux-intel-iotg-5.15< 5.15.0-1018.23~20.04.1
linux-iot< 5.4.0-1006.8
linux-kvm< 4.4.0-1115.125 | < 4.15.0-1129.134 | < 5.4.0-1079.85 | < 5.15.0-1021.26
linux-lowlatency< 5.15.0-53.59
linux-lowlatency-hwe-5.15< 5.15.0-53.59~20.04.1
linux-lts-xenial< 4.4.0-235.269~14.04.1
linux-nvidia< 5.15.0-1015.15
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14< 5.14.0-1054.61
linux-oem-5.17< 5.17.0-1020.21
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0< 6.0.0-1007.7
linux-oracle< 4.15.0-1108.119~16.04.1 | < 4.15.0-1108.119 | < 5.4.0-1087.96 | < 5.15.0-1022.28
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< 5.15.0-1022.28~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1087.96~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1074.85 | < 5.15.0-1018.20
linux-raspi-5.4< 5.4.0-1074.85~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2< 4.15.0-1121.129 | All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1025.28
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1023.27~20.04.1
linux-riscv-5.8All versions (No fix recorded)
linux-snapdragon< 4.15.0-1139.149