RUSTSEC-2025-0136

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Source

https://rustsec.org/advisories/RUSTSEC-2025-0136

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2025-0136.json

JSON Data

https://api.osv.dev/v1/vulns/RUSTSEC-2025-0136

Aliases

Published

2025-11-07T12:00:00Z

Modified

2025-12-17T06:16:23.047289Z

Severity

4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L CVSS Calculator

Summary

Underflow in aes_key_unwrap function

Details

The aes_key_unwrap function would panic if passed a ciphertext that was too short. In a debug build, it would panic due to a subtraction underflow. In a release build, it would use the small negative quantity to allocate a vector. Since the allocator expects an unsigned quantity, the negative value would be interpreted as a huge allocation. The allocator would then fail to allocate the memory and panic.

An attacker could trigger this panic by sending a victim an encrypted message whose PKESK or SKESK packet has been specially modified. When the victim decrypts the message, the program would crash.

Database specific

{
    "license": "CC0-1.0"
}

References

Affected packages

crates.io / sequoia-openpgp

Package

Name: sequoia-openpgp; View open source insights on deps.dev
Purl: pkg:cargo/sequoia-openpgp

Affected ranges

Type: SEMVER
Events: Introduced

0.0.0-0

Fixed

2.1.0

Ecosystem specific

{
    "affects": {
        "os": [],
        "arch": [],
        "functions": [
            "sequoia_openpgp::crypto::ecdh::aes_key_unwrap"
        ]
    },
    "affected_functions": null
}

Database specific

cvss

"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L"

informational

null