Headline
GHSA-v8gq-5grq-9728: mozjpeg DecompressScanlines::read_scanlines is Unsound
This issue and vector is similar to RUSTSEC-2020-0029 of rgb
crate which mozjpeg
depends on.
Affected versions of mozjpeg
crate allow creating instances of any type T
from bytes,
and do not correctly constrain T
to the types for which it is safe to do so.
Examples of safety violation possible for a type T
:
T
contains a reference type, and it constructs a pointer to an invalid, arbitrary memory address.T
requires a safety and/or validity invariant for its construction that may be violated.
The issue was fixed in 0.8.19 by using safer types and involving rgb
dependency bump.
This issue and vector is similar to RUSTSEC-2020-0029 of rgb crate which mozjpeg depends on.
Affected versions of mozjpeg crate allow creating instances of any type T from bytes,
and do not correctly constrain T to the types for which it is safe to do so.
Examples of safety violation possible for a type T:
- T contains a reference type, and it constructs a pointer to an invalid, arbitrary memory address.
- T requires a safety and/or validity invariant for its construction that may be violated.
The issue was fixed in 0.8.19 by using safer types and involving rgb dependency bump.
References
- ImageOptim/mozjpeg-rust#10
- https://rustsec.org/advisories/RUSTSEC-2020-0165.html