Vulnerability Details : CVE-2021-27365
An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a Netlink message.
Vulnerability category: Memory Corruption
Exploit prediction scoring system (EPSS) score for CVE-2021-27365
Probability of exploitation activity in the next 30 days: 0.09%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 38 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-27365
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
nvd@nist.gov |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
nvd@nist.gov |
CWE ids for CVE-2021-27365
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-27365
-
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
[SECURITY] [DLA 2586-1] linux security updateMailing List;Third Party Advisory
-
http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html
Kernel Live Patch Security Notice LSN-0075-1 ≈ Packet StormThird Party Advisory;VDB Entry
-
https://www.openwall.com/lists/oss-security/2021/03/06/1
oss-security - Linux iscsi security fixesMailing List;Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20210409-0001/
March 2021 Linux Kernel 5.11.3 Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f9dbdf97a5bd92b1a49cee3d591b55b11fd7a6d5
kernel/git/torvalds/linux.git - Linux kernel source treeMailing List;Patch;Vendor Advisory
-
https://bugzilla.suse.com/show_bug.cgi?id=1182715
Bug 1182715 – VUL-0: CVE-2021-27365: kernel-source: iscsi_host_get_param() allows sysfs params larger than 4kIssue Tracking;Third Party Advisory
-
https://www.oracle.com/security-alerts/cpuoct2021.html
Oracle Critical Patch Update Advisory - October 2021Patch;Third Party Advisory
-
https://blog.grimm-co.com/2021/03/new-old-bugs-in-linux-kernel.html
New Old Bugs in the Linux KernelExploit;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html
[SECURITY] [DLA 2610-1] linux-4.19 security updateMailing List;Third Party Advisory
-
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ec98ea7070e94cc25a422ec97d1421e28d97b7ee
kernel/git/torvalds/linux.git - Linux kernel source treeMailing List;Patch;Vendor Advisory
Products affected by CVE-2021-27365
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- Oracle » Tekelec Platform DistributionVersions from including (>=) 7.4.0 and up to, including, (<=) 7.7.1cpe:2.3:a:oracle:tekelec_platform_distribution:*:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:*