From 6f17443c228722651c9a8562e71d76bab818001c Mon Sep 17 00:00:00 2001 From: JOE1994 Date: Sun, 31 Jan 2021 09:28:41 -0500 Subject: [PATCH] Report 0118-postscript to RustSec --- crates/postscript/RUSTSEC-0000-0000.md | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 crates/postscript/RUSTSEC-0000-0000.md diff --git a/crates/postscript/RUSTSEC-0000-0000.md b/crates/postscript/RUSTSEC-0000-0000.md new file mode 100644 index 0000000..b8980e3 --- /dev/null +++ b/crates/postscript/RUSTSEC-0000-0000.md @@ -0,0 +1,20 @@ +```toml +[advisory] +id = "RUSTSEC-0000-0000" +package = "postscript" +date = "2021-01-30" +url = "https://github.com/bodoni/postscript/issues/1" +categories = ["memory-exposure"] + +[versions] +patched = [">= 0.14.0"] +``` + +# `Read` on uninitialized buffer may cause UB (`impl Walue for Vec`) + +Affected versions of this crate passes an uninitialized buffer to a user-provided `Read` implementation. + +Arbitrary `Read` implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer. +Reading from uninitialized memory produces undefined values that can quickly invoke undefined behavior. + +This flaw was fixed in commit 8026286 by zero-initializing the buffer before handing to a user-provided `Read`.