Medium severity · published May 31, 2022
CVE-2022-1462
An out-of-bounds read flaw was found in the Linux kernel’s TeleTYpe subsystem
6.3
CVSS
0.3%
EPSS
No
On KEV
Description
An out-of-bounds read flaw was found in the Linux kernel’s TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
no information yet · source: vendor, NVD
DL
Debian Linux · Debian
10.0 · source: NVD
EL
Enterprise Linux · Redhat
8.0; 9.0 · source: NVD
SS
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · Siemens
before V1.1 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-1462
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-1462
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2078466
Mailing List
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
Exploit
https://seclists.org/oss-sec/2022/q2/155
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-794697.html
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