net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.1%
exploitation probability
0.1%top 98% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak
When processing Router Advertisements with user options the kernel
builds an RTM_NEWNDUSEROPT netlink message. The nduseroptmsg struct
has three padding fields that are never zeroed and can leak kernel data
The fix is simple, just zeroes the padding fields.
Affected products
Linux · LinuxReferences
https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-082556.htmlhttps://git.kernel.org/stable/c/11d7fe97421cfc81549940c20ed5ac9472d6db05https://git.kernel.org/stable/c/1da9023f6b071a38e5430ffbce4b70b2b1ac4f9chttps://git.kernel.org/stable/c/2fe4d0ba690a69ad6ae9f7ab9bdc96e02610b648https://git.kernel.org/stable/c/4f810c686fde509d1cdaa706322d9d2531f8f1a4https://git.kernel.org/stable/c/7f56d87e527bb5a13c3e8b0d5840cb6332822f6dhttps://git.kernel.org/stable/c/ae05340ccaa9d347fe85415609e075545bec589fhttps://git.kernel.org/stable/c/b485eef3d97b7aae55ce669b6de555ec81f3d21chttps://git.kernel.org/stable/c/ef3645606e4a635d5062a492f22b7f490852ee67