RustCrypto AEADs up to 0.4.2 aes-gcm signature verification

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in RustCrypto AEADs up to 0.4.2 and classified as problematic. This vulnerability affects unknown code of the component aes-gcm. Such manipulation leads to signature verification. This vulnerability is referenced as CVE-2025-27498. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in RustCrypto AEADs up to 0.4.2 and classified as problematic. Affected by this issue is an unknown code of the component aes-gcm. The manipulation with an unknown input leads to a signature verification vulnerability. Using CWE to declare the problem leads to CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. Impacted is confidentiality, integrity, and availability. CVE summarizes:

aes-gcm is a pure Rust implementation of the AES-GCM. In decrypt_in_place_detached, the decrypted ciphertext (which is the correct ciphertext) is exposed even if the tag is incorrect. This is because in decrypt_inplace in asconcore.rs, tag verification causes an error to be returned with the plaintext contents still in buffer. The vulnerability is fixed in 0.4.3.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-27498 since 02/26/2025. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 0.4.3 eliminates this vulnerability. Applying the patch d1d749ba57e38e65b0e037cd744d0b17f7254037 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: AEADs 0.4.3
Patch: d1d749ba57e38e65b0e037cd744d0b17f7254037

Timelineinfo

02/26/2025 🔍
03/03/2025 +5 days 🔍
03/03/2025 +0 days 🔍
03/03/2025 +0 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-r38m-44fw-h886
Status: Confirmed

CVE: CVE-2025-27498 (🔍)
GCVE (CVE): GCVE-0-2025-27498
GCVE (VulDB): GCVE-100-298400

Entryinfo

Created: 03/03/2025 19:03
Changes: 03/03/2025 19:03 (69)
Complete: 🔍
Cache ID: 216::103

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