CVE-2020-28374: debian debian_linux

Modified

AliasesMGASA-2021-0047UBUNTU-CVE-2020-28374USN-4694-1+4 more

Published 13-01-2021Last modified 04-08-2024

Vulnerability summary

CVE-2020-28374 is a high (CVSS 8.1) vulnerability in debian debian_linux. EPSS estimates a 6.64% chance of exploitation in the next 30 days, higher than 93.8% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 8.1, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

8.1/10

010

High · v3.1 (NVD)

EPSS score

6.64%

0%100%

Low · +0.33 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Timeline

13-01-2021
PublishedVulnerability first disclosed.
04-08-2024
Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 3 sources · 2 versions

v3.18.1v2.05.5

EPSS trend

Probability

6.64%

Chance of exploitation in the next 30 days

Percentile

94%

Versus all other CVEs

30-day change

Increase +0.33 pp

From 6.31% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-22Improper Limitation of a Pathname to a Restricted DirectoryThe product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu51 products

linux< 4.4.0-200.232 | < 4.15.0-132.136 | < 5.4.0-62.70 | < 3.13.0-184.235
linux-aws< 4.4.0-1085.89 | < 4.4.0-1121.135 | < 4.15.0-1093.99 | < 5.4.0-1037.39
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1037.39~18.04.1

linux-aws-fips< 4.15.0-2036.38 | All versions (No fix recorded) | < 5.4.0-1069.73+fips2
linux-aws-hwe< 4.15.0-1093.99~16.04.1
linux-azure< 4.15.0-1106.118~14.04.1 | < 4.15.0-1106.118~16.04.1 | All versions (No fix recorded) | < 5.4.0-1039.41
linux-azure-4.15< 4.15.0-1106.118
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1039.41~18.04.1
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fdeAll versions (No fix recorded)
linux-azure-fips< 4.15.0-2018.21 | All versions (No fix recorded) | < 5.4.0-1073.76+fips1
linux-dell300x< 4.15.0-1011.15
linux-fips< 4.4.0-1054.60 | All versions (No fix recorded) | < 4.15.0-1051.59
linux-gcp< 4.15.0-1092.105~16.04.1 | All versions (No fix recorded) | < 5.4.0-1036.39
linux-gcp-4.15< 4.15.0-1092.105
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1036.39~18.04.1
linux-gcp-edgeAll versions (No fix recorded)
linux-gcp-fipsAll versions (No fix recorded) | < 5.4.0-1067.71~20.04.1
linux-gkeAll versions (No fix recorded)
linux-gke-4.15< 4.15.0-1078.83
linux-gke-5.0< 5.0.0-1051.53
linux-gke-5.3< 5.3.0-1040.43
linux-gke-5.4< 5.4.0-1035.37~18.04.1
linux-gkeop< 5.4.0-1009.10
linux-gkeop-5.4< 5.4.0-1009.10~18.04.1
linux-hwe< 4.15.0-132.136~16.04.1 | < 5.3.0-70.66
linux-hwe-5.4< 5.4.0-62.70~18.04.1
linux-hwe-5.8< 5.8.0-38.43~20.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-kvm< 4.4.0-1087.96 | < 4.15.0-1084.86 | < 5.4.0-1032.33
linux-lts-xenial< 4.4.0-200.232~14.04.1
linux-oemAll versions (No fix recorded)
linux-oem-5.10< 5.10.0-1014.15
linux-oem-5.6< 5.6.0-1047.51
linux-oracle< 4.15.0-1064.71~16.04.1 | < 4.15.0-1064.71 | < 5.4.0-1037.40
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1037.40~18.04.1
linux-raspi< 5.4.0-1028.31
linux-raspi-5.4< 5.4.0-1028.31~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2< 4.4.0-1145.155 | < 4.15.0-1078.83 | All versions (No fix recorded)
linux-raspi2-5.3< 5.3.0-1037.39
linux-realtimeAll versions (No fix recorded)
linux-riscvAll versions (No fix recorded)
linux-snapdragon< 4.4.0-1149.159 | < 4.15.0-1095.104

Show all 51

Mageia3 products

kernel< 5.10.8-2.mga7
kmod-virtualbox< 6.1.16-10.mga7
kmod-xtables-addons< 3.13-6.mga7

Debian2 products

linux< 5.10.9-1
debian_linuxEOL9.0 | 10.0

Fedoraproject1 product

fedoraEOL32 | 33

Linux1 product

linux_kernel< 5.10.7

5 vendors · 58 products

References

32 links

bugzilla.suse.com/show_bug.cgi?id=1178372X Refsource MISCIssue TrackingPatchThird Party Advisory
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.7X Refsource CONFIRMWEBRelease NotesVendor Advisory
github.com/torvalds/linux/commit/2896c93811e39d63a4d9b63ccf12a8fbc226e5e4X Refsource CONFIRMPatchThird Party Advisory
git.kernel.org/cgit/…X Refsource CONFIRMPatchVendor Advisory
bugzilla.suse.com/attachment.cgi?id=844938X Refsource MISCIssue TrackingThird Party Advisory
www.openwall.com/lists/oss-security/2021/01/13/2Mailing ListX Refsource MLISTThird Party Advisory
www.openwall.com/lists/oss-security/2021/01/13/5Mailing ListX Refsource MLISTThird Party Advisory
lists.fedoraproject.org/archives/…Vendor AdvisoryX Refsource FEDORA
lists.fedoraproject.org/archives/…Vendor AdvisoryX Refsource FEDORA
packetstormsecurity.com/files/161229/Kernel-Live-Patch-Security-Notice-LSN-0074-1.htmlX Refsource MISCThird Party AdvisoryVDB Entry

Show all 32 references

www.debian.org/security/2021/dsa-4843Vendor AdvisoryX Refsource DEBIANThird Party Advisory
lists.fedoraproject.org/archives/…Vendor AdvisoryX Refsource FEDORA
lists.debian.org/debian-lts-announce/2021/02/msg00018.htmlMailing ListX Refsource MLISTThird Party Advisory
security.netapp.com/advisory/ntap-20210219-0002/X Refsource CONFIRMThird Party Advisory
lists.debian.org/debian-lts-announce/2021/03/msg00010.htmlMailing ListX Refsource MLISTThird Party Advisory
advisories.mageia.org/MGASA-2021-0047.htmlAdvisory
bugs.mageia.org/show_bug.cgi?id=28163REPORT
bugs.mageia.org/show_bug.cgi?id=27080REPORT
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.8WEB
ubuntu.com/security/CVE-2020-28374REPORT
git.kernel.org/pub/…REPORT
github.com/open-iscsi/tcmu-runner/pull/644REPORT
ubuntu.com/security/notices/USN-4694-1Advisory
ubuntu.com/security/notices/USN-4713-1Advisory
ubuntu.com/security/notices/USN-4711-1Advisory
ubuntu.com/security/notices/USN-4709-1Advisory
ubuntu.com/security/notices/USN-4713-2Advisory
ubuntu.com/security/notices/USN-4753-1Advisory
ubuntu.com/security/notices/USN-4901-1Advisory
www.cve.org/CVERecord?id=CVE-2020-28374REPORT
security-tracker.debian.org/tracker/CVE-2020-28374Advisory
nvd.nist.gov/vuln/detail/CVE-2020-28374OvalAdvisory