SARA / Free Tools / CVE / CVE-2024-36121

CVE-2024-36121 — netty-incubator-codec-ohttp is the OHTTP implementation for netty

netty-incubator-codec-ohttp is the OHTTP implementation for netty. BoringSSLAEADContext keeps track of how many OHTTP responses have been sent and uses this sequence number to calculate the appropriate nonce to use with the encryption algorithm. Unfortunately, two separate errors

CVSS
5.9 MEDIUM
EPSS
40.00% (top 39.40%)
CWE
CWE-200, CWE-190, CWE-323
Published
2024-06-04T21:13:33.656Z
Last modified
2024-08-06T18:58:19.539Z
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N

01What is this vulnerability?

netty-incubator-codec-ohttp is the OHTTP implementation for netty. BoringSSLAEADContext keeps track of how many OHTTP responses have been sent and uses this sequence number to calculate the appropriate nonce to use with the encryption algorithm. Unfortunately, two separate errors combine which would allow an attacker to cause the sequence number to overflow and thus the nonce to repeat.

02Affected products

VendorProductVersions
nettynettyincubator-codec-ohttp — >= 0.0.3.Final, < 0.0.11.Final

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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