CVE - CVE-2024-42283

CVE-ID
CVE-2024-42283	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: net: nexthop: Initialize all fields in dumped nexthops struct nexthop_grp contains two reserved fields that are not initialized by nla_put_nh_group(), and carry garbage. This can be observed e.g. with strace (edited for clarity): # ip nexthop add id 1 dev lo # ip nexthop add id 101 group 1 # strace -e recvmsg ip nexthop get id 101 ... recvmsg(... [{nla_len=12, nla_type=NHA_GROUP}, [{id=1, weight=0, resvd1=0x69, resvd2=0x67}]] ...) = 52 The fields are reserved and therefore not currently used. But as they are, they leak kernel memory, and the fact they are not just zero complicates repurposing of the fields for new ends. Initialize the full structure.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/1377de719652d868f5317ba8398b7e74c5f0430b URL:https://git.kernel.org/stable/c/1377de719652d868f5317ba8398b7e74c5f0430b MISC:https://git.kernel.org/stable/c/5cc4d71dda2dd4f1520f40e634a527022e48ccd8 URL:https://git.kernel.org/stable/c/5cc4d71dda2dd4f1520f40e634a527022e48ccd8 MISC:https://git.kernel.org/stable/c/6d745cd0e9720282cd291d36b9db528aea18add2 URL:https://git.kernel.org/stable/c/6d745cd0e9720282cd291d36b9db528aea18add2 MISC:https://git.kernel.org/stable/c/7704460acd7f5d35eb07c52500987dc9b95313fb URL:https://git.kernel.org/stable/c/7704460acd7f5d35eb07c52500987dc9b95313fb MISC:https://git.kernel.org/stable/c/9e8f558a3afe99ce51a642ce0d3637ddc2b5d5d0 URL:https://git.kernel.org/stable/c/9e8f558a3afe99ce51a642ce0d3637ddc2b5d5d0 MISC:https://git.kernel.org/stable/c/a13d3864b76ac87085ec530b2ff8e37482a63a96 URL:https://git.kernel.org/stable/c/a13d3864b76ac87085ec530b2ff8e37482a63a96 MISC:https://git.kernel.org/stable/c/fd06cb4a5fc7bda3dea31712618a62af72a1c6cb URL:https://git.kernel.org/stable/c/fd06cb4a5fc7bda3dea31712618a62af72a1c6cb
Assigning CNA
kernel.org
Date Record Created
20240730	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240730)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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