CVE-2021-29154: debian debian_linux

Modified

AliasesUBUNTU-CVE-2021-29154DEBIAN-CVE-2021-29154

Published 08-04-2021Last modified 03-08-2024

Vulnerability summary

CVE-2021-29154 is a high (CVSS 7.8) vulnerability in debian debian_linux. EPSS estimates a 0.93% chance of exploitation in the next 30 days, higher than 60.6% 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

0.93%

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

08-04-2021
PublishedVulnerability first disclosed.
03-08-2024
Last modifiedVulnerability information updated.

Description

BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c.

CVSS metrics

4 scores · 3 sources · 2 versions

v3.17.8v2.07.2

EPSS trend

Probability

0.93%

Chance of exploitation in the next 30 days

Percentile

61%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.93% 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-77Improper Neutralization of Special Elements used in a CommandThe product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

Affected systems

Version check

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

Ubuntu50 products

linuxAll versions (No fix recorded) | < 4.4.0-209.241 | < 4.15.0-142.146 | < 5.4.0-72.80
linux-aws< 4.4.0-1091.95 | < 4.4.0-1127.141 | < 4.15.0-1099.106 | < 5.4.0-1045.47
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1045.47~18.04.1

linux-aws-fips< 4.15.0-2042.44 | All versions (No fix recorded) | < 5.4.0-1069.73+fips2
linux-aws-hwe< 4.15.0-1099.106~16.04.1
linux-azure< 4.15.0-1113.126~14.04.1 | < 4.15.0-1113.126~16.04.1 | All versions (No fix recorded) | < 5.4.0-1046.48
linux-azure-4.15< 4.15.0-1113.126
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1046.48~18.04.1
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fips< 4.15.0-2025.28 | All versions (No fix recorded) | < 5.4.0-1073.76+fips1
linux-dell300x< 4.15.0-1017.21
linux-fips< 4.4.0-1061.67 | All versions (No fix recorded) | < 4.15.0-1058.66
linux-gcp< 4.15.0-1098.111~16.04.1 | All versions (No fix recorded) | < 5.4.0-1042.45
linux-gcp-4.15< 4.15.0-1098.111
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1042.45~18.04.1
linux-gcp-edgeAll versions (No fix recorded)
linux-gcp-fipsAll versions (No fix recorded) | < 5.4.0-1067.71~20.04.1
linux-gke< 5.4.0-1042.44
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.3< 5.3.0-1042.45
linux-gke-5.4< 5.4.0-1042.44~18.04.1
linux-gkeop< 5.4.0-1014.15
linux-gkeop-5.4< 5.4.0-1014.15~18.04.1
linux-hwe< 4.15.0-142.146~16.04.1 | < 5.3.0-73.69
linux-hwe-5.4< 5.4.0-72.80~18.04.1
linux-hwe-5.8< 5.8.0-50.56~20.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-kvm< 4.4.0-1092.101 | < 4.15.0-1090.92 | < 5.4.0-1038.39
linux-lts-xenial< 4.4.0-209.241~14.04.1
linux-oemAll versions (No fix recorded)
linux-oem-5.10< 5.10.0-1022.23
linux-oem-5.6< 5.6.0-1053.57
linux-oracle< 4.15.0-1070.78~16.04.1 | < 4.15.0-1070.78 | < 5.4.0-1043.46
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1043.46~18.04.1
linux-raspi< 5.4.0-1034.37
linux-raspi-5.4< 5.4.0-1034.37~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2< 4.4.0-1151.162 | < 4.15.0-1084.89 | All versions (No fix recorded)
linux-raspi2-5.3< 5.3.0-1039.41
linux-realtimeAll versions (No fix recorded)
linux-riscvAll versions (No fix recorded)
linux-riscv-5.8< 5.8.0-22.24~20.04.1
linux-snapdragon< 4.4.0-1155.165 | < 4.15.0-1101.110

Show all 50

Netapp10 products

Show all 10

Debian2 products

linux< 5.10.28-1
debian_linuxEOL9.0

Fedoraproject1 product

fedoraEOL33

Linux1 product

linux_kernel≥ 3.0, < 4.4.266 | ≥ 4.5, < 4.9.266 | ≥ 4.10, < 4.14.230 | ≥ 4.15, < 4.19.186 | ≥ 4.20, < 5.4.111 | ≥ 5.5, < 5.10.29 | ≥ 5.11, < 5.11.13

5 vendors · 64 products

References

19 links

lists.fedoraproject.org/archives/…Vendor Advisory
lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMailing ListThird Party Advisory
lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing ListThird Party Advisory
www.oracle.com/security-alerts/cpujul2022.htmlThird Party Advisory
www.openwall.com/lists/oss-security/2021/04/08/1REPORTMailing ListPatchThird Party Advisory
news.ycombinator.com/item?id=26757760Issue TrackingThird Party Advisory
packetstormsecurity.com/files/162434/Kernel-Live-Patch-Security-Notice-LSN-0076-1.htmlThird Party AdvisoryVDB Entry
security.netapp.com/advisory/ntap-20210604-0006/Third Party Advisory
git.kernel.org/cgit/…
git.kernel.org/cgit/…

Show all 19 references

ubuntu.com/security/CVE-2021-29154REPORT
git.kernel.org/pub/…REPORT
git.kernel.org/pub/…REPORT
ubuntu.com/security/notices/USN-4912-1Advisory
ubuntu.com/security/notices/USN-4916-1Advisory
ubuntu.com/security/notices/USN-4917-1Advisory
www.cve.org/CVERecord?id=CVE-2021-29154REPORT
security-tracker.debian.org/tracker/CVE-2021-29154Advisory
nvd.nist.gov/vuln/detail/CVE-2021-29154OvalAdvisory