High severity · published Oct 21, 2024
CVE-2024-49997
net: ethernet: lantiq_etop: fix memory disclosure
7.5
CVSS
1.1%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: lantiq_etop: fix memory disclosure When applying padding, the buffer is not zeroed, which results in memory disclosure. The mentioned data is observed on the wire. This patch uses skb_put_padto() to pad Ethernet frames properly. The mentioned function zeroes the expanded buffer. In case the packet cannot be padded it is silently dropped. Statistics are also not incremented. This driver does not support statistics in the old 32-bit format or the new 64-bit format. These will be added in the future. In its current form, the patch should be easily backported to stable versions. Ethernet MACs on Amazon-SE and Danube cannot do padding of the packets in hardware, so software padding must be applied.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
3.0 before 5.10.227; 5.11 before 5.15.168; 5.16 before 6.1.113; 6.2 before 6.6.55; 6.7 before 6.10.14; 6.11 before 6.11.3; +1 more · source: NVD
LI
Linux · Linux
504d4721ee8e432af4b5f196a08af38bc4dac5fe before 905f06a34f960676e7dc77bea00f2f8fe18177ad; 504d4721ee8e432af4b5f196a08af38bc4dac5fe before 60c068444c20bf9a3e22b65b5f6f3d9edc852931; 504d4721ee8e432af4b5f196a08af38bc4dac5fe before 185df159843d30fb71f821e7ea4368c2a3bfcd36; 504d4721ee8e432af4b5f196a08af38bc4dac5fe before 469856f76f4802c5d7e3d20e343185188de1e2db; 504d4721ee8e432af4b5f196a08af38bc4dac5fe before 2bf4c101d7c99483b8b15a0c8f881e3f399f7e18; 504d4721ee8e432af4b5f196a08af38bc4dac5fe before e66e38d07b31e177ca430758ed97fbc79f27d966; +4 more · source: vendor
RR
RUGGEDCOM RST2428P · 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
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5 · source: CISA