ac125ee29a
As proposed in #240 and tracked in #414, this PR translates all advisories into the new "V3" advisory format, which is based on Markdown with leading TOML front matter. This format makes it easier to see rendered Markdown syntax descriptions, whether rendered by an IDE or GitHub. This should help with both crafting advisories initially as well as review, and ideally encourages more lengthy descriptions. Support for this format shipped in `cargo-audit` v0.12.0 on May 6th, 2020.
1.2 KiB
[advisory]
id = "RUSTSEC-2019-0014"
package = "image"
aliases = ["CVE-2019-16138"]
date = "2019-08-21"
keywords = ["drop", "use-after-free"]
url = "https://github.com/image-rs/image/pull/985"
[affected.functions]
"image::hdr::HDRDecoder::read_image_transform" = ["< 0.21.3, >= 0.10.2"]
[versions]
patched = [">= 0.21.3"]
unaffected = ["< 0.10.2"]
Flaw in interface may drop uninitialized instance of arbitrary types
Affected versions of this crate would call Vec::set_len on an uninitialized
vector with user-provided type parameter, in an interface of the HDR image
format decoder. They would then also call other code that could panic before
initializing all instances.
This could run Drop implementations on uninitialized types, equivalent to use-after-free, and allow an attacker arbitrary code execution.
Two different fixes were applied. It is possible to conserve the interface by
ensuring proper initialization before calling Vec::set_len. Drop is no longer
called in case of panic, though.
Starting from version 0.22, a breaking change to the interface requires
callers to pre-allocate the output buffer and pass a mutable slice instead,
avoiding all unsafe code.