CVE-2021-44717: debian debian_linux Improper Resource Shutdown or Release
Vulnerability summary
CVE-2021-44717 is a medium (CVSS 5.8) Improper Resource Shutdown or Release vulnerability in debian debian_linux. EPSS estimates a 2.00% chance of exploitation in the next 30 days, higher than 80.7% of scored vulnerabilities.
Not severe (CVSS 4.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 20 · Related 8Timeline
- 01-01-2022PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Go before 1.16.12 and 1.17.x before 1.17.5 on UNIX allows write operations to an unintended file or unintended network connection as a consequence of erroneous closing of file descriptor 0 after file-descriptor exhaustion.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · DebianEcosystem advisory · calculated4.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- NVDNIST4.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- OSV · AlpineEcosystem advisory · calculated4.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS trend
Probability
2.00%
Chance of exploitation in the next 30 days
Percentile
81%
Versus all other CVEs
30-day change
Increase +0.14 pp
From 1.86% 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
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Alpine2 products
- go≥ 1.17.0, < 1.17.9-r0 | ≥ 1.17.0, < 1.17.6-r0
- nomad< 1.1.12-r0 | < 1.2.6-r0
Debian2 products
- golang-1.15< 1.15.15-1~deb11u2
- debian_linuxEOL9.0
Ubuntu2 products
- golang-1.17All versions (No fix recorded)
- golang-1.8All versions (No fix recorded)
Go1 product
- stdlib≥ 1.17.0-0, < 1.17.5
Golang1 product
- go< 1.16.12 | ≥ 1.17.0, < 1.17.5
Opensuse1 product
- apptainer&distro=openSUSE Tumbleweed< 1.0.1-1.1
6 vendors · 9 products
References
19 linksShow all 19 references
- go.dev/issue/50057REPORT