In the Linux Kernel before versions 4.20.8 and 4.19.21 a use-after-free error in the “sctp_sendmsg()” function (net/sctp/socket.c) when handling SCTP_SENDALL flag can be exploited to corrupt memory.
[
{
"product": "Linux Kernel",
"vendor": "UNKNOWN",
"versions": [
{
"status": "affected",
"version": "4.20.x prior to 4.20.8"
},
{
"status": "affected",
"version": "4.19.x prior to 4.19.21"
}
]
}
]
cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21
cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8
git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=ba59fb0273076637f0add4311faa990a5eec27c0
secuniaresearch.flexerasoftware.com/secunia_research/2019-5/
support.f5.com/csp/article/K12671141
usn.ubuntu.com/3930-1/
usn.ubuntu.com/3930-2/