CVE-2020-15436

MediumCVSS 6.7/10Last modified Jun 17, 2026

Description

Use-after-free vulnerability in fs/block_dev.c in the Linux kernel before 5.8 allows local users to gain privileges or cause a denial of service by leveraging improper access to a certain error field.

Metrics

CVSS 3.1 6.7/10CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

Vendor	Product	Versions
n/a	linux kernel	5.7 (verified), possibly others 4.18

References

https://lkml.org/lkml/2020/6/7/379Exploit, Patch, Vendor Advisory
https://security.netapp.com/advisory/ntap-20201218-0002/Third Party Advisory
https://lkml.org/lkml/2020/6/7/379Exploit, Patch, Vendor Advisory
https://security.netapp.com/advisory/ntap-20201218-0002/Third Party Advisory

Timeline

Published: Nov 23, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

CVE-2020-154374.4The Linux kernel before version 5.8 is vulnerable to a NULL pointer dereference in drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_p CVE-2020-15447.8An elevation of privilege vulnerability exists when the Windows Backup Engine improperly handles memory. To exploit this vulnerability, an a CVE-2020-15457.8An elevation of privilege vulnerability exists when the Windows Backup Engine improperly handles memory. To exploit this vulnerability, an a CVE-2020-15467.8An elevation of privilege vulnerability exists when the Windows Backup Engine improperly handles memory. To exploit this vulnerability, an a CVE-2020-154667.5In Wireshark 3.2.0 to 3.2.4, the GVCP dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-gvcp.c by ensur CVE-2020-154678.8The administrative interface of Cohesive Networks vns3:vpn appliances before version 4.11.1 is vulnerable to authenticated remote code execu CVE-2020-154689.8Persian VIP Download Script 1.0 allows SQL Injection via the cart_edit.php active parameter.CVE-2020-154692.3In QEMU 4.2.0, a MemoryRegionOps object may lack read/write callback methods, leading to a NULL pointer dereference.CVE-2020-15477.8An elevation of privilege vulnerability exists when the Windows Backup Engine improperly handles memory. To exploit this vulnerability, an a CVE-2020-154705.5ffjpeg through 2020-02-24 has a heap-based buffer overflow in jfif_decode in jfif.c.CVE-2020-154719.1In nDPI through 3.2, the packet parsing code is vulnerable to a heap-based buffer over-read in ndpi_parse_packet_line_info in lib/ndpi_main.CVE-2020-154729.1In nDPI through 3.2, the H.323 dissector is vulnerable to a heap-based buffer over-read in ndpi_search_h323 in lib/protocols/h323.c, as demo