CVE-2020-29371: linux linux_kernel Use of Uninitialized Resource
Vulnerability summary
CVE-2020-29371 is a low (CVSS 3.3) Use of Uninitialized Resource vulnerability in linux linux_kernel. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 54.2% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 3.3, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 16 · Related 16Timeline
- 28-11-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in romfs_dev_read in fs/romfs/storage.c in the Linux kernel before 5.8.4. Uninitialized memory leaks to userspace, aka CID-bcf85fcedfdd.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated3.3LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- OSV · DebianEcosystem advisory · calculated3.3LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS trend
Probability
0.73%
Chance of exploitation in the next 30 days
Percentile
54%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.73% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
1 foundExploit Reference (bugs.chromium.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu42 products
- linuxAll versions (No fix recorded) | < 4.4.0-193.224 | < 4.15.0-121.123 | < 5.4.0-51.56
- linux-aws< 4.4.0-1081.85 | < 4.4.0-1117.131 | < 4.15.0-1086.91 | < 5.4.0-1028.29
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.3All versions (No fix recorded)
- linux-aws-5.4< 5.4.0-1028.29~18.04.1
Debian1 product
- linux< 5.8.7-1
Linux1 product
- linux_kernel< 5.8.4
3 vendors · 44 products
References
10 links- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.4X Refsource MISCREPORTRelease NotesVendor Advisory
- bugs.chromium.org/p/project-zero/issues/detail?id=2077X Refsource MISCREPORTExploitIssue TrackingThird Party Advisory