CVE-2020-12464: linux linux_kernel Use After Free
Vulnerability summary
CVE-2020-12464 is a high (CVSS 7.2) Use After Free vulnerability in linux linux_kernel. EPSS estimates a 0.80% chance of exploitation in the next 30 days, higher than 56.7% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 6.7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 24 · Related 16Timeline
- 29-04-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
usb_sg_cancel in drivers/usb/core/message.c in the Linux kernel before 5.6.8 has a use-after-free because a transfer occurs without a reference, aka CID-056ad39ee925.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · DebianEcosystem advisory · calculated6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- NVDNIST6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.80%
Chance of exploitation in the next 30 days
Percentile
57%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.80% 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 (lkml.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu40 products
- linuxAll versions (No fix recorded) | < 4.4.0-184.214 | < 4.15.0-106.107 | < 5.4.0-37.41
- linux-aws< 4.4.0-1073.77 | < 4.4.0-1109.120 | < 4.15.0-1073.77 | < 5.4.0-1015.15
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.3< 5.3.0-1023.25~18.04.1
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
Netapp9 products
- active_iq_unified_managerna
- aff_a700s_firmwarena
- cloud_backupna
- hci_baseboard_management_controllerh300s | h410c | h410s | h500s | h610c | h610s | h615c | h700s
- hci_compute_nodena
Debian1 product
- linux< 5.6.14-1
Linux1 product
- linux_kernel< 3.16.85 | ≥ 3.17, < 4.4.221 | ≥ 4.5, < 4.9.221 | ≥ 4.10, < 4.14.178 | ≥ 4.15, < 4.19.119 | ≥ 4.20, < 5.4.36 | ≥ 5.5, < 5.6.8
4 vendors · 51 products
References
27 links- github.com/torvalds/linux/commit/056ad39ee9253873522f6469c3364964a322912bX Refsource MISCREPORTPatchThird Party Advisory
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.8X Refsource MISCREPORTRelease NotesVendor Advisory
lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.debian.org/debian-lts-announce/2020/06/msg00012.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlMailing ListX Refsource MLISTThird Party Advisory
Show all 27 references
- lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
