CyberSecBulletin
CVE-2023-1380NVD status: Modified

Kernel: Out-of-bounds Read

Published Updated By the CyberSecBulletin desk

CVE-2023-1380 is a high-severity out-of-bounds read vulnerability in Kernel, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 16.3% chance of exploitation within 30 days, which is in the top 2.99% of all scored CVEs.

Patch this week

EPSS places it among the vulnerabilities most likely to be exploited soon.

What to do

  1. Update Linux Kernel to 4.14.315 or 4.19.283 or 5.4.243 or 5.10.180, whichever matches your release line, or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
KernelKernelNot specified in the recordNot stated
Red HatEnterprise Linux8.0; 9.0Not stated
LinuxLinux Kernel3.2.1 up to, but not including, 4.14.315; 4.19 up to, but not including, 4.19.283; 5.4 up to, but not including, 5.4.243; 5.10 up to, but not including, 5.10.180; 5.15 up to, but not including, 5.15.110; 6.1 up to, but not including, 6.1.27; 6.2 up to, but not including, 6.2.14; 6.34.14.315, 4.19.283, 5.4.243, 5.10.180, 5.15.110, 6.1.27
NetAppH500s FirmwareNot specified in the recordNot stated
NetAppH700s FirmwareNot specified in the recordNot stated
NetAppH410s FirmwareNot specified in the recordNot stated
NetAppH410c FirmwareNot specified in the recordNot stated
NetAppH300s FirmwareNot specified in the recordNot stated
DebianDebian Linux10.0; 11.0Not stated
CanonicalUbuntu Linux14.04; 16.04; 18.04; 20.04; 22.04Not stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
LocalThe attacker needs local access or must trick a user into running something.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
NoneNothing can be modified.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.17.1HighNVD
CVSS 3.17.1HighCISA (ADP)

Official description

A slab-out-of-bound read problem was found in brcmf_get_assoc_ies in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux Kernel. This issue could occur when assoc_info->req_len data is bigger than the size of the buffer, defined as WL_EXTRA_BUF_MAX, leading to a denial of service.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

How developers prevent this class of flaw

  • Use a language that provides appropriate memory abstractions.

More Out-of-bounds Read vulnerabilities (CWE-125)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Kernel

All Kernel vulnerabilities

Recent Out-of-bounds Read vulnerabilities

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