Medium severity · published Sep 18, 2024
CVE-2024-46745
Input: uinput - reject requests with unreasonable number of slots
5.5
CVSS
0.3%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
Input: uinput - reject requests with unreasonable number of slots
When exercising uinput interface syzkaller may try setting up device
with a really large number of slots, which causes memory allocation
failure in input_mt_init_slots(). While this allocation failure is
handled properly and request is rejected, it results in syzkaller
reports. Additionally, such request may put undue burden on the
system which will try to free a lot of memory for a bogus request.
Fix it by limiting allowed number of slots to 100. This can easily
be extended if we see devices that can track more than 100 contacts.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 4.19.322; 4.20 before 5.4.284; 5.5 before 5.10.226; 5.11 before 5.15.167; 5.16 before 6.1.110; 6.2 before 6.6.51; +5 more · source: NVD
LI
Linux · Linux
38e7afe96c7c0ad900824911c61fdb04078033dc before 9c6d189f0c1c59ba9a32326ec82a0b367a3cd47b; 38e7afe96c7c0ad900824911c61fdb04078033dc before 597ff930296c4c8fc6b6a536884d4f1a7187ec70; 38e7afe96c7c0ad900824911c61fdb04078033dc before 51fa08edd80003db700bdaa099385c5900d27f4b; 38e7afe96c7c0ad900824911c61fdb04078033dc before 9719687398dea8a6a12a10321a54dd75eec7ab2d; 38e7afe96c7c0ad900824911c61fdb04078033dc before 61df76619e270a46fd427fbdeb670ad491c42de2; 38e7afe96c7c0ad900824911c61fdb04078033dc before a4858b00a1ec57043697fb935565fe267f161833; +3 more · source: vendor
RR
RUGGEDCOM RST2428P · Siemens
before V3.2 · source: CISA
SX
SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family · Siemens
before V3.2 · source: CISA
SX
SCALANCE XCM-/XRM-/XCH-/XRH-300 family · Siemens
before V3.2 · source: CISA
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · Siemens
before V1.1.1 · source: CISA
SS
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-46745
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-46745
Patch
https://git.kernel.org/stable/c/206f533a0a7c683982af473079c4111f4a0f9f5e
Patch
https://git.kernel.org/stable/c/51fa08edd80003db700bdaa099385c5900d27f4b
Patch
https://git.kernel.org/stable/c/597ff930296c4c8fc6b6a536884d4f1a7187ec70
Patch
https://git.kernel.org/stable/c/61df76619e270a46fd427fbdeb670ad491c42de2
Patch
https://git.kernel.org/stable/c/9719687398dea8a6a12a10321a54dd75eec7ab2d
Patch
https://git.kernel.org/stable/c/9c6d189f0c1c59ba9a32326ec82a0b367a3cd47b
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