CVE-2018-12384
First published: Fri Aug 24 2018(Updated: )
A flaw was found with NSS library when compiled with a server application. A man-in-the-middle attacker could use this flaw in a passive replay attack. The most severe issue for confidentiality is for stream ciphers (and AES-GCM), as the server may encrypt different data with the exact same key stream and idempotency, the server may perform same action multiple times without proper authentication
Credit: security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Network Security Services | <3.39 | |
| redhat/nss | <3.36.5 | 3.36.5 |
| redhat/nss | <3.39 | 3.39 |
| debian/nss | 2:3.61-1+deb11u3 2:3.61-1+deb11u4 2:3.87.1-1 2:3.87.1-1+deb12u1 2:3.106-1 | |
| IBM Cognos Analytics | <=12.0.0-12.0.3 | |
| IBM Cognos Analytics | <=11.2.0-11.2.4 FP4 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2018-12384
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://launchpad.net/bugs/cve/CVE-2018-12384
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.39_release_notes
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.36.5_release_notes
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1624704
- https://bugzilla.mozilla.org/show_bug.cgi?id=1483128
- https://hg.mozilla.org/projects/nss/rev/46f9a1f40c3d
- https://hg.mozilla.org/projects/nss/rev/f182a11fbe53
- https://hg.mozilla.org/projects/nss/rev/2ed9f6afd84e
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1622089#c14
- https://hg.mozilla.org/projects/nss/rev/ee357b00f2e6#l8.272
- https://access.redhat.com/errata/RHSA-2018:2768
- https://access.redhat.com/errata/RHSA-2018:2898
- https://bugzilla.redhat.com/show_bug.cgi?id=1622089
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12384
- https://nvd.nist.gov/vuln/detail/CVE-2018-12384
- https://security-tracker.debian.org/tracker/CVE-2018-12384
- https://ubuntu.com/security/CVE-2018-12384
- https://www.ibm.com/support/pages/node/7177223 (Advisory)
Frequently Asked Questions
What is CVE-2018-12384?
CVE-2018-12384 is a vulnerability that affects the handling of SSLv2-compatible ClientHello requests in the NSS library, resulting in full malleability of the ClientHello for SSLv2 used for TLS 1.2.
How severe is CVE-2018-12384?
CVE-2018-12384 has a severity score of 5.9, which is considered medium.
Which software versions are affected by CVE-2018-12384?
NSS versions prior to 3.39 are affected by CVE-2018-12384.
How can I fix CVE-2018-12384?
To fix CVE-2018-12384, update the NSS library to version 3.39 or higher.
Where can I find more information about CVE-2018-12384?
You can find more information about CVE-2018-12384 in the references provided: Bugzilla Mozilla, Oracle Security Advisory, and Launchpad Bugs.
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