CVE-2022-2938: fedoraproject fedora Use After Free

Modified

AliasesUBUNTU-CVE-2022-2938DEBIAN-CVE-2022-2938

Published 23-08-2022Last modified 03-08-2024

Vulnerability summary

CVE-2022-2938 is a high (CVSS 7.8) Use After Free vulnerability in fedoraproject fedora. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 20.6% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

7.8/10

010

High · v3.1 (NVD)

EPSS score

0.28%

0%100%

Low · 0.00 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 9 · Related 6

RHSA-2022:7444 RHSA-2022:7683 RHSA-2024:1188 SUSE-SU-2022:3288-1 SUSE-SU-2022:3293-1 SUSE-SU-2022:4617-1+3 more

Timeline

23-08-2022
PublishedVulnerability first disclosed.
03-08-2024
Last modifiedVulnerability information updated.

Description

A flaw was found in the Linux kernel's implementation of Pressure Stall Information. While the feature is disabled by default, it could allow an attacker to crash the system or have other memory-corruption side effects.

CVSS metrics

4 scores · 3 sources · 2 versions

v4.07.3v3.17.8

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.28% 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-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected systems

Version check

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

Ubuntu63 products

linux< 5.4.0-109.123
linux-aws< 5.4.0-1072.77
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-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1072.77~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-fips< 5.4.0-1072.77+fips1 | All versions (No fix recorded)
linux-azureAll versions (No fix recorded) | < 5.4.0-1077.80
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1077.80~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fips< 5.4.0-1076.79+fips1 | All versions (No fix recorded)
linux-bluefield< 5.4.0-1035.38
linux-fips< 5.4.0-1048.54 | All versions (No fix recorded)
linux-gcpAll versions (No fix recorded) | < 5.4.0-1072.77
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1072.77~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-fips< 5.4.0-1071.75+fips1 | All versions (No fix recorded)
linux-gke< 5.4.0-1068.71
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.4All versions (No fix recorded)
linux-gkeop< 5.4.0-1039.40
linux-gkeop-5.4All versions (No fix recorded)
linux-hweAll versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.4< 5.4.0-109.123~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1020.22
linux-ibm-5.4< 5.4.0-1020.22~18.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-iot< 5.4.0-1004.6
linux-kvm< 5.4.0-1062.65
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< 5.14.0-1024.26
linux-oem-5.6All versions (No fix recorded)
linux-oracle< 5.4.0-1070.76
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-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1070.76~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1059.67
linux-raspi-5.4< 5.4.0-1059.66~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2All 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)

Show all 63

Netapp5 products

Debian1 product

linux< 5.16.7-1

Fedoraproject1 product

fedoraEOL35

Linux1 product

linux_kernel≥ 5.2, < 5.4.177 | ≥ 5.5, < 5.10.97 | ≥ 5.11, < 5.15.19 | ≥ 5.16, < 5.16.5

Redhat1 product

enterprise_linux8.0

6 vendors · 72 products

References

7 links

git.kernel.org/pub/…Mailing ListPatchVendor Advisory
security.netapp.com/advisory/ntap-20221223-0002/Third Party Advisory
ubuntu.com/security/CVE-2022-2938REPORT
git.kernel.org/linus/a06247c6804f1a7c86a2e5398a4c1f1db1471848REPORT
www.cve.org/CVERecord?id=CVE-2022-2938REPORT
security-tracker.debian.org/tracker/CVE-2022-2938Advisory
nvd.nist.gov/vuln/detail/CVE-2022-2938OvalAdvisory