Ubuntu.comUB:CVE-2021-47548CVE-2021-47548
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.9 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
10.3%
In the Linux kernel, the following vulnerability has been resolved:
ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in
hns_dsaf_ge_srst_by_port() The if statement: if (port >= DSAF_GE_NUM)
return; limits the value of port less than DSAF_GE_NUM (i.e., 8). However,
if the value of port is 6 or 7, an array overflow could occur: port_rst_off
= dsaf_dev->mac_cb[port]->port_rst_off; because the length of
dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6). To fix this possible array
overflow, we first check port and if it is greater than or equal to
DSAF_MAX_PORT_NUM, the function returns.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws-5.4 | < any | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-aws-hwe | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-azure | < any | UNKNOWN |
| ubuntu | 14.04 | noarch | linux-azure | < any | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-azure | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-azure-4.15 | < any | UNKNOWN |
References
git.kernel.org/linus/a66998e0fbf213d47d02813b9679426129d0d114 (5.16-rc2)
git.kernel.org/stable/c/22519eff7df2d88adcc2568d86046ce1e2b52803
git.kernel.org/stable/c/948968f8747650447c8f21c9fdba0e1973be040b
git.kernel.org/stable/c/99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d
git.kernel.org/stable/c/a66998e0fbf213d47d02813b9679426129d0d114
git.kernel.org/stable/c/abbd5faa0748d0aa95d5191d56ff7a17a6275bd1
git.kernel.org/stable/c/dd07f8971b81ad98cc754b179b331b57f35aa1ff
git.kernel.org/stable/c/fc7ffa7f10b9454a86369405d9814bf141b30627
launchpad.net/bugs/cve/CVE-2021-47548
nvd.nist.gov/vuln/detail/CVE-2021-47548
security-tracker.debian.org/tracker/CVE-2021-47548
www.cve.org/CVERecord?id=CVE-2021-47548
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.9 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
10.3%