Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: add missing netlink policy validations Hyunwoo Kim reports out-of-bounds access in sctp and ctnetlink. These attributes are used by the kernel without any validation. Extend the netlink policies accordingly. Quoting the reporter: nlattr_to_sctp() assigns the user-supplied CTA_PROTOINFO_SCTP_STATE value directly to ct->proto.sctp.state without checking that it is within the valid range. [..] and: ... with exp->dir = 100, the access at ct->master->tuplehash[100] reads 5600 bytes past the start of a 320-byte nf_conn object, causing a slab-out-of-bounds read confirmed by UBSAN.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
a258860e01b80e8f554a4ab1a6c95e6042eb8b73 to < e7b5766693477c52424cc6c79dd30a7a9c7db52caffecteda258860e01b80e8f554a4ab1a6c95e6042eb8b73 to < 78bba9f73942aa7dca47d817d8cec0fb9b443b70affecteda258860e01b80e8f554a4ab1a6c95e6042eb8b73 to < be88a337bf07afb1ee173f1099294d1b7ab3fefeaffecteda258860e01b80e8f554a4ab1a6c95e6042eb8b73 to < c5e918390002edf0cff80a0e7ce1f86f16a9507caffecteda258860e01b80e8f554a4ab1a6c95e6042eb8b73 to < 9174d28f3f15d8c4962f5980c0be167633880443affecteda258860e01b80e8f554a4ab1a6c95e6042eb8b73 to < 67c53c1978cef3c504237275e39c857e2f6af56eaffecteda258860e01b80e8f554a4ab1a6c95e6042eb8b73 to < 0fbae1e74493d5a160a70c51aeba035d8266ea7daffecteda258860e01b80e8f554a4ab1a6c95e6042eb8b73 to < f900e1d77ee0ef87bfb5ab3fe60f0b3d8ad5ba05affected
Linux Linux
Default version status: affected
2.6.27affected0 to < 2.6.27unaffected5.10.258 to ≤ 5.10.*unaffected5.15.209 to ≤ 5.15.*unaffected6.1.175 to ≤ 6.1.*unaffected6.6.136 to ≤ 6.6.*unaffected6.12.83 to ≤ 6.12.*unaffected6.18.24 to ≤ 6.18.*unaffected6.19.10 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/e7b5766693477c52424cc6c79dd30a7a9c7db52c ↗
- https://git.kernel.org/stable/c/78bba9f73942aa7dca47d817d8cec0fb9b443b70 ↗
- https://git.kernel.org/stable/c/be88a337bf07afb1ee173f1099294d1b7ab3fefe ↗
- https://git.kernel.org/stable/c/c5e918390002edf0cff80a0e7ce1f86f16a9507c ↗
- https://git.kernel.org/stable/c/9174d28f3f15d8c4962f5980c0be167633880443 ↗
- https://git.kernel.org/stable/c/67c53c1978cef3c504237275e39c857e2f6af56e ↗
- https://git.kernel.org/stable/c/0fbae1e74493d5a160a70c51aeba035d8266ea7d ↗
- https://git.kernel.org/stable/c/f900e1d77ee0ef87bfb5ab3fe60f0b3d8ad5ba05 ↗
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html ↗