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Vulnerability · Published Jan 13, 2021 · Assigned by mitre

CVE-2020-28374

High 8.1

In plain English

A high-severity security flaw in the kernel-abi-whitelists package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 6.6% (higher than 94% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)8.1High
Exploit odds (30 days)6.6%top 6.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are proxied via an attacker-selected backstore.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8kernel-abi-whitelists4.18.0-240.22.1.el8_3ALSA-2021:1093
AlmaLinux:8kernel-tools-libs-devel4.18.0-240.22.1.el8_3ALSA-2021:1093
Debian:12linux5.10.9-1DEBIAN-CVE-2020-28374
Debian:13linux5.10.9-1DEBIAN-CVE-2020-28374
Debian:14linux5.10.9-1DEBIAN-CVE-2020-28374
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-28374
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-28374
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-28374
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2020-28374

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References