CVE-2023-0160: Possibility of deadlock in libbpf function sock_hash_delete_elem
Vulnerability summary
CVE-2023-0160 is a medium (CVSS 5.5) Deadlock vulnerability in fedoraproject fedora. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 21.4% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 4.7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 28 · Related 28Timeline
- 18-07-2023PublishedVulnerability first disclosed.
- 26-09-2024Last modifiedVulnerability information updated.
Description
A deadlock flaw was found in the Linux kernel’s BPF subsystem. This flaw allows a local user to potentially crash the system.
CVSS metrics
4 scores · 4 sources · 1 version- CVE.orgCNA4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.29%
Chance of exploitation in the next 30 days
Percentile
21%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.29% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (lore.kernel.org)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-833DeadlockThe product contains multiple threads or executable segments that are waiting for each other to release a necessary lock, resulting in deadlock.
- CWE-667Improper LockingThe product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu166 products
- linuxAll versions (No fix recorded)
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded)
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian1 product
- linux< 6.1.85-1 | < 6.8.9-1
Fedoraproject1 product
- fedoraEOL38
Linux1 product
- linux_kernel< 6.4
4 vendors · 169 products
References
10 links- access.redhat.com/security/cve/CVE-2023-0160VDB EntryX Refsource REDHATMitigationThird Party Advisory
- lore.kernel.org/all/CABcoxUayum5oOqFMMqAeWuS8+EzojquSOSyDA3J_2omY=2EeAg@mail.gmail.com/REPORTExploitMailing ListVendor Advisory
