CVE-2021-45708
Abomonation transmutes &T to and from &[u8] without sufficient constraints
An issue was discovered in the abomonation crate through 2021-10-17 for Rust. Because transmute operations are insufficiently constrained, there can be an information leak or ASLR bypass.
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
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
7.5
An issue was discovered in the abomonation crate through 2021-10-17 for Rust. Because transmute operations are insufficiently constrained, there can be an information leak or ASLR bypass.
- Record
CVE-2021-45708- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-668
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in the abomonation crate through 2021-10-17 for Rust. Because transmute operations are insufficiently constrained, there can be an information leak or ASLR bypass.
- Record
CVE-2021-45708- Updated
- 2026-11-02
EUVDEUVD-2022-0474 No score
An issue was discovered in the abomonation crate through 2021-10-17 for Rust. Because transmute operations are insufficiently constrained, there can be an information leak or ASLR bypass.
- Record
EUVD-2022-0474- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5vwc-r48g-wj6c
7.5
Abomonation transmutes &T to and from &[u8] without sufficient constraints
An issue was discovered in the abomonation crate through version 0.7.3 for Rust. Because transmute operations are insufficiently constrained, there can be an information leak or ASLR bypass.
- Record
GHSA-5vwc-r48g-wj6c- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-668
- Updated
- 2026-11-02
GitHub AdvisoriesGHSA-hfxp-p695-629x No score
abomonation transmutes &T to and from &[u8] without sufficient constraints
This transmute is at the core of the abomonation crates. It's so easy to use it to violate alignment requirements that no test in the crate's test suite passes under miri.
The use of this transmute in serialization/deserialization also incorrectly assumes that the layout of a repr(Rust) type is stable. This transmute can also disclose both the contents of padding bytes which may be an information leak and the contents of pointers, which may be used to defeat ASLR.
- Record
GHSA-hfxp-p695-629x- Updated
- 2026-11-02
OSVGHSA-5vwc-r48g-wj6c
7.5
Abomonation transmutes &T to and from &[u8] without sufficient constraints
An issue was discovered in the abomonation crate through version 0.7.3 for Rust. Because transmute operations are insufficiently constrained, there can be an information leak or ASLR bypass.
- Record
GHSA-5vwc-r48g-wj6c- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-668
- Updated
- 2026-11-02
OSVGHSA-hfxp-p695-629x No score
abomonation transmutes &T to and from &[u8] without sufficient constraints
This transmute is at the core of the abomonation crates. It's so easy to use it to violate alignment requirements that no test in the crate's test suite passes under miri.
The use of this transmute in serialization/deserialization also incorrectly assumes that the layout of a repr(Rust) type is stable. This transmute can also disclose both the contents of padding bytes which may be an information leak and the contents of pointers, which may be used to defeat ASLR.
- Record
GHSA-hfxp-p695-629x- Updated
- 2026-11-02
OSVRUSTSEC-2021-0120 No score
abomonation transmutes &T to and from &[u8] without sufficient constraints
This transmute is at the core of the abomonation crates. It's so easy to use it to violate alignment requirements that no test in the crate's test suite passes under miri. The use of this transmute in serialization/deserialization also incorrectly assumes that the layout of a repr(Rust) type is stable. This transmute can also disclose both the contents of padding bytes which may be an information leak and the contents of pointers, which may be used to defeat ASLR.
- Record
RUSTSEC-2021-0120- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
abomonationcrates.io |
through 0.7.3 | None known |
abomonationcrates.io |
0.0.0-0 and later | None known |
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-2021-45708 is a high vulnerability (CVSS 7.5) in Abomonation Project Abomonation, published October 17, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.00%, the 62nd percentile. No source names a fixed version.
References
rustsec.org/advisories/RUSTSEC-2021-0120.html
raw.githubusercontent.com/rustsec/advisory-db/main/crates/abomonation/RUSTSEC-2021-0120.md
nvd.nist.gov/vuln/detail/CVE-2021-45708
github.com/TimelyDataflow/abomonation/issues/23
github.com/advisories/GHSA-5vwc-r48g-wj6c
github.com/advisories/GHSA-hfxp-p695-629x
github.com/TimelyDataflow/abomonation
crates.io/crates/abomonation