CVE-2021-41864: debian debian_linux Integer Overflow or Wraparound

Analyzed

AliasesSUSE-SU-2021:3712-1SUSE-SU-2021:3743-1UBUNTU-CVE-2021-41864+1 more

Published 01-10-2021Last modified 04-08-2024

Vulnerability summary

CVE-2021-41864 is a high (CVSS 7.8) Integer Overflow or Wraparound vulnerability in debian debian_linux. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 35.5% 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

0.41%

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

Timeline

01-10-2021
PublishedVulnerability first disclosed.
04-08-2024
Last modifiedVulnerability information updated.

Description

prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel before 5.14.12 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write.

CVSS metrics

4 scores · 3 sources · 2 versions

v3.17.8v2.04.6

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.41% 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-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

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< 4.15.0-166.174 | < 5.4.0-92.103
linux-aws< 4.15.0-1118.125 | < 5.4.0-1061.64
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11< 5.11.0-1023.24~20.04.1
linux-aws-5.3All versions (No fix recorded)

linux-aws-5.4< 5.4.0-1061.64~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-fips< 4.15.0-2059.61 | All versions (No fix recorded) | < 5.4.0-1069.73+fips2
linux-aws-hwe< 4.15.0-1118.125~16.04.1
linux-azure< 4.15.0-1129.142~14.04.1 | < 4.15.0-1129.142~16.04.1 | All versions (No fix recorded) | < 5.4.0-1065.68
linux-azure-4.15< 4.15.0-1129.142
linux-azure-5.11< 5.11.0-1023.24~20.04.1
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1065.68~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fips< 4.15.0-2041.45 | All versions (No fix recorded) | < 5.4.0-1073.76+fips1
linux-bluefield< 5.4.0-1023.26
linux-dell300x< 4.15.0-1033.38
linux-fips< 4.15.0-1075.84 | All versions (No fix recorded) | < 5.4.0-1038.44
linux-gcp< 4.15.0-1114.128~16.04.1 | All versions (No fix recorded) | < 5.4.0-1059.63
linux-gcp-4.15< 4.15.0-1114.128
linux-gcp-5.11< 5.11.0-1024.26~20.04.1
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1059.63~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-edgeAll versions (No fix recorded)
linux-gcp-fips< 4.15.0-2024.26 | All versions (No fix recorded) | < 5.4.0-1067.71~20.04.1
linux-gke< 5.4.0-1057.60
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.4< 5.4.0-1057.60~18.04.1
linux-gkeop< 5.4.0-1029.30
linux-gkeop-5.4< 5.4.0-1029.30~18.04.2
linux-hwe< 4.15.0-166.174~16.04.1 | All versions (No fix recorded)
linux-hwe-5.11< 5.11.0-44.48~20.04.2
linux-hwe-5.13< 5.13.0-23.23~20.04.2
linux-hwe-5.4< 5.4.0-92.103~18.04.2
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1010.11
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-kvm< 4.15.0-1105.107 | < 5.4.0-1051.53
linux-oemAll versions (No fix recorded)
linux-oem-5.10< 5.10.0-1051.53
linux-oem-5.13< 5.13.0-1026.32
linux-oem-5.14< 5.14.0-1007.7
linux-oem-5.6All versions (No fix recorded)
linux-oracle< 4.15.0-1085.93~16.04.1 | < 4.15.0-1085.93 | < 5.4.0-1059.63
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11< 5.11.0-1023.24~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1059.63~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1048.53
linux-raspi-5.4< 5.4.0-1048.53~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2< 4.15.0-1101.108 | All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded)
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11< 5.11.0-1024.25~20.04.1
linux-riscv-5.8All versions (No fix recorded)
linux-snapdragon< 4.15.0-1118.127

Show all 63

Netapp12 products

Show all 12

Suse7 products

kernel-livepatch-SLE15-SP2_Update_14&distro=SUSE Linux Enterprise Live Patching 15 SP2< 6-2.2
kernel-livepatch-SLE15-SP2_Update_16&distro=SUSE Linux Enterprise Live Patching 15 SP2< 6-2.2
kernel-livepatch-SLE15-SP2_Update_17&distro=SUSE Linux Enterprise Live Patching 15 SP2< 5-2.2
kernel-livepatch-SLE15-SP2_Update_18&distro=SUSE Linux Enterprise Live Patching 15 SP2< 4-2.2
kernel-livepatch-SLE15-SP2_Update_19&distro=SUSE Linux Enterprise Live Patching 15 SP2< 2-2.2

Show all 7

Debian2 products

linux< 5.14.12-1
debian_linuxEOL9.0 | 10.0

Fedoraproject1 product

fedoraEOL33 | 34 | 35

Linux1 product

linux_kernel≥ 4.6, < 4.9.287 | ≥ 4.10, < 4.14.251 | ≥ 4.15, < 4.19.211 | ≥ 4.20, < 5.4.153 | ≥ 5.5, < 5.10.73 | ≥ 5.11, < 5.14.12

6 vendors · 86 products

References

24 links

git.kernel.org/pub/…X Refsource MISCREPORTMailing ListPatchVendor Advisory
github.com/torvalds/linux/commit/30e29a9a2bc6a4888335a6ede968b75cd329657aX Refsource MISCREPORTPatchThird Party Advisory
lists.fedoraproject.org/archives/…Vendor AdvisoryX Refsource FEDORABroken Link
lists.fedoraproject.org/archives/…Vendor AdvisoryX Refsource FEDORABroken Link
lists.fedoraproject.org/archives/…Vendor AdvisoryX Refsource FEDORABroken Link
security.netapp.com/advisory/ntap-20211029-0004/X Refsource CONFIRMThird Party Advisory
lists.debian.org/debian-lts-announce/2021/12/msg00012.htmlMailing ListX Refsource MLISTThird Party Advisory
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.12X Refsource CONFIRMMailing ListPatchVendor Advisory
lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlMailing ListX Refsource MLISTThird Party Advisory
www.debian.org/security/2022/dsa-5096Vendor AdvisoryX Refsource DEBIANThird Party Advisory

Show all 24 references

www.suse.com/support/update/announcement/2021/suse-su-20213712-1/Advisory
bugzilla.suse.com/1191318REPORT
www.suse.com/security/cve/CVE-2021-41864WEB
www.suse.com/support/update/announcement/2021/suse-su-20213743-1/Advisory
ubuntu.com/security/CVE-2021-41864REPORT
ubuntu.com/security/notices/USN-5139-1Advisory
ubuntu.com/security/notices/USN-5140-1Advisory
ubuntu.com/security/notices/USN-5208-1Advisory
ubuntu.com/security/notices/USN-5209-1Advisory
ubuntu.com/security/notices/USN-5210-1Advisory
ubuntu.com/security/notices/USN-5218-1Advisory
www.cve.org/CVERecord?id=CVE-2021-41864REPORT
security-tracker.debian.org/tracker/CVE-2021-41864Advisory
nvd.nist.gov/vuln/detail/CVE-2021-41864OvalAdvisory