CVE-2021-45689
Reading on uninitialized buffer may cause UB ( `gfx_auxil::read_spirv()` )
An issue was discovered in the gfx-auxil crate through 2021-01-07 for Rust. gfx_auxil::read_spirv may read from uninitialized memory locations.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in the gfx-auxil crate through 2021-01-07 for Rust. gfx_auxil::read_spirv may read from uninitialized memory locations.
- Record
CVE-2021-45689- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-908
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in the gfx-auxil crate through 2021-01-07 for Rust. gfx_auxil::read_spirv may read from uninitialized memory locations.
- Record
CVE-2021-45689- Updated
- 2026-11-02
EUVDEUVD-2022-0581 No score
An issue was discovered in the gfx-auxil crate through 2021-01-07 for Rust. gfx_auxil::read_spirv may read from uninitialized memory locations.
- Record
EUVD-2022-0581- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-ff2r-xpwq-6whj
Use of Uninitialized Resource in gfx-auxil
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.
- Record
GHSA-ff2r-xpwq-6whj- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-908
- Updated
- 2026-11-02
GitHub AdvisoriesGHSA-28p5-7rg4-8v99 No score
Reading on uninitialized buffer may cause UB ( `gfx_auxil::read_spirv()` )
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.
- Record
GHSA-28p5-7rg4-8v99- Updated
- 2026-11-02
OSVGHSA-ff2r-xpwq-6whj
Use of Uninitialized Resource in gfx-auxil
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.
- Record
GHSA-ff2r-xpwq-6whj- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-908
- Updated
- 2026-11-02
OSVGHSA-28p5-7rg4-8v99 No score
Reading on uninitialized buffer may cause UB ( `gfx_auxil::read_spirv()` )
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.
- Record
GHSA-28p5-7rg4-8v99- Updated
- 2026-11-02
OSVRUSTSEC-2021-0091 No score
Reading on uninitialized buffer may cause UB ( `gfx_auxil::read_spirv()` )
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.
- Record
RUSTSEC-2021-0091- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-45689 is a critical vulnerability (CVSS 9.8) in Gfx-auxil Project Gfx-auxil, published January 7, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.23%, the 69th percentile. No source names a fixed version.
References
rustsec.org/advisories/RUSTSEC-2021-0091.html
raw.githubusercontent.com/rustsec/advisory-db/main/crates/gfx-auxil/RUSTSEC-2021-0091.md
github.com/gfx-rs/gfx/issues/3567
nvd.nist.gov/vuln/detail/CVE-2021-45689
crates.io/crates/gfx-auxil