OMGeeky/advisory-db
1
0
Fork 0
mirror of https://github.com/OMGeeky/advisory-db.git synced 2026-02-15 13:57:46 +01:00
Code Issues Packages Projects Releases Wiki Activity

Report 0110-libp2p-deflate to RustSec

Browse Source
This commit is contained in:
JOE1994
2021-01-27 10:46:49 -05:00
parent 39a88f9c63
commit 868651a1c2
1 changed files with 20 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
crates/libp2p-deflate/RUSTSEC-0000-0000.md Normal file
View File

@@ -0,0 +1,20 @@
```toml
[advisory]
id = "RUSTSEC-0000-0000"
package = "libp2p-deflate"
date = "2020-01-24"
url = "https://github.com/libp2p/rust-libp2p/issues/1932"
categories = ["memory-exposure"]
[versions]
patched = [">= 0.27.1"]
```
# Undefined data exposed in DeflateOutput's AsyncRead implementation
Affected versions of this crate passes an uninitialized buffer to a user-provided trait function `AsyncRead::poll_read()`.
Arbitrary `AsyncRead::poll_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.
The flaw was fixed in commit 5ba266a by ensuring the newly allocated part of the buffer is zero-initialized before passing it to a user-provided `AsyncRead::poll_read()`.