5.5

CVE-2021-47053: crypto: sun8i-ss - Fix memory leak of pad

Analyzed
AliasesUBUNTU-CVE-2021-47053DEBIAN-CVE-2021-47053
Published 28-02-2024Last modified 11-05-2026

Vulnerability summary

CVE-2021-47053 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.6% 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
0.24%
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

  1. 28-02-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: sun8i-ss - Fix memory leak of pad It appears there are several failure return paths that don't seem to be free'ing pad. Fix these. Addresses-Coverity: ("Resource leak")

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.24% 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

Affected systems

Version check

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

Ubuntu62 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • 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-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ d9b45418a91773b7672e4c60037a28074b495c6d, < 2c67a9333da9d0a3b87310e0d116b7c9070c7b00 | ≥ d9b45418a91773b7672e4c60037a28074b495c6d, < c633e025bd04f54d7b33331cfcdb71354b08ce59 | ≥ d9b45418a91773b7672e4c60037a28074b495c6d, < d3d702084d125689edb2b9395c707e09b471352e | ≥ d9b45418a91773b7672e4c60037a28074b495c6d, < 50274b01ac1689b1a3f6bc4b5b3dbf361a55dd3a | 5.10
  • linux_kernel≥ 5.10, < 5.10.37 | ≥ 5.11, < 5.11.21 | ≥ 5.12, < 5.12.4
Debian1 product
  • linux< 5.10.38-1

3 vendors · 65 products

References

8 links