Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_log: initialize nfgenmsg in NLMSG_DONE terminator When batching multiple NFLOG messages (inst->qlen > 1), __nfulnl_send() appends an NLMSG_DONE terminator with sizeof(struct nfgenmsg) payload via nlmsg_put(), but never initializes the nfgenmsg bytes. The nlmsg_put() helper only zeroes alignment padding after the payload, not the payload itself, so four bytes of stale kernel heap data are leaked to userspace in the NLMSG_DONE message body. Use nfnl_msg_put() to build the NLMSG_DONE terminator, which initializes the nfgenmsg payload via nfnl_fill_hdr(), consistent with how __build_packet_message() already constructs NFULNL_MSG_PACKET headers.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 before 296f18e1c3a87c915a92ed27832d5040a22d1072; affected 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 before 9e2182865de781c41ab16b7985e9d26dcefea867; affected 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 before 57cc509d82b46150a11dcecc8b25eaa177eda34d; affected 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 before 368c22aea490f6f50df831b4f9e3623787686c5b; affected 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 before d1399632ba255d2e02c757af5d9f5d9279ce168c; affected 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 before d552bcfca323d175664d7444989b04f55666978a; affected 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 before 15d209bccf9273b4a8b4e579ba0e92d065b6ec8c; affected 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 before 1f3083aec8836213da441270cdb1ab612dd82cf4 |
| Linux / Linux | affected 2.6.23; unaffected 0 before 2.6.23; unaffected 5.10.258 through 5.10.*; unaffected 5.15.209 through 5.15.*; unaffected 6.1.175 through 6.1.*; unaffected 6.6.136 through 6.6.*; unaffected 6.12.83 through 6.12.*; unaffected 6.18.24 through 6.18.*; unaffected 6.19.14 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/296f18e1c3a87c915a92ed27832d5040a22d1072
- https://git.kernel.org/stable/c/9e2182865de781c41ab16b7985e9d26dcefea867
- https://git.kernel.org/stable/c/57cc509d82b46150a11dcecc8b25eaa177eda34d
- https://git.kernel.org/stable/c/368c22aea490f6f50df831b4f9e3623787686c5b
- https://git.kernel.org/stable/c/d1399632ba255d2e02c757af5d9f5d9279ce168c
- https://git.kernel.org/stable/c/d552bcfca323d175664d7444989b04f55666978a
- https://git.kernel.org/stable/c/15d209bccf9273b4a8b4e579ba0e92d065b6ec8c
- https://git.kernel.org/stable/c/1f3083aec8836213da441270cdb1ab612dd82cf4
ADP enrichment
No English description supplied.