CVE-2021-45095: debian debian_linux

Modified

AliasesUBUNTU-CVE-2021-45095DEBIAN-CVE-2021-45095

Published 16-12-2021Last modified 04-08-2024

Vulnerability summary

CVE-2021-45095 is a medium (CVSS 5.5) vulnerability in debian debian_linux. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 30.2% 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

0.36%

0%100%

Low · +0.03 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Timeline

16-12-2021
PublishedVulnerability first disclosed.
04-08-2024
Last modifiedVulnerability information updated.

Description

pep_sock_accept in net/phonet/pep.c in the Linux kernel through 5.15.8 has a refcount leak.

CVSS metrics

4 scores · 3 sources · 2 versions

v3.15.5v2.02.1

EPSS trend

Probability

0.36%

Chance of exploitation in the next 30 days

Percentile

30%

Versus all other CVEs

30-day change

Increase +0.03 pp

From 0.34% 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-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Affected systems

Version check

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

Ubuntu68 products

linuxAll versions (No fix recorded) | < 4.4.0-222.255 | < 4.15.0-173.182 | < 5.4.0-105.119
linux-aws< 4.4.0-1102.107 | < 4.4.0-1138.152 | < 4.15.0-1124.133 | < 5.4.0-1069.73
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11All versions (No fix recorded)
linux-aws-5.13< 5.13.0-1019.21~20.04.1

linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1069.73~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-fips< 4.15.0-2064.67 | All versions (No fix recorded) | < 5.4.0-1069.73+fips2
linux-aws-hwe< 4.15.0-1124.133~16.04.1
linux-azure< 4.15.0-1134.147~14.04.1 | < 4.15.0-1134.147~16.04.1 | All versions (No fix recorded) | < 5.4.0-1073.76
linux-azure-4.15< 4.15.0-1134.147
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13< 5.13.0-1021.24~20.04.1
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1073.76~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fips< 4.15.0-2046.50 | All versions (No fix recorded) | < 5.4.0-1073.76+fips1
linux-bluefield< 5.4.0-1032.35
linux-dell300x< 4.15.0-1038.43
linux-fips< 4.4.0-1072.78 | All versions (No fix recorded) | < 4.15.0-1081.90 | < 5.4.0-1046.52
linux-gcp< 4.15.0-1119.133~16.04.1 | All versions (No fix recorded) | < 5.4.0-1068.72
linux-gcp-4.15< 4.15.0-1119.133
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13< 5.13.0-1021.25~20.04.1
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1068.72~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-fips< 4.15.0-2029.32 | All versions (No fix recorded) | < 5.4.0-1067.71~20.04.1
linux-gke< 5.4.0-1066.69
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.4< 5.4.0-1066.69~18.04.1
linux-gkeop< 5.4.0-1037.38
linux-gkeop-5.4< 5.4.0-1037.38~18.04.1
linux-hwe< 4.15.0-173.182~16.04.1 | All versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13< 5.13.0-37.42~20.04.1
linux-hwe-5.4< 5.4.0-105.119~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1018.20
linux-ibm-5.4< 5.4.0-1018.20~18.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-kvm< 4.4.0-1103.112 | < 4.15.0-1110.113 | < 5.4.0-1059.62
linux-lts-xenial< 4.4.0-222.255~14.04.1
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14< 5.14.0-1022.24
linux-oem-5.6All versions (No fix recorded)
linux-oracle< 4.15.0-1090.99~16.04.1 | < 4.15.0-1090.99 | < 5.4.0-1067.72
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11All versions (No fix recorded)
linux-oracle-5.13< 5.13.0-1025.30~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1067.72~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1056.63
linux-raspi-5.4< 5.4.0-1056.63~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2< 4.15.0-1106.113 | All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded)
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.8All versions (No fix recorded)
linux-snapdragon< 4.15.0-1123.132