High severity7.5NVD Advisory· Published Oct 20, 2020· Updated Jun 17, 2026
CVE-2020-25648
CVE-2020-25648
Description
A flaw was found in the way NSS handled CCS (ChangeCipherSpec) messages in TLS 1.3. This flaw allows a remote attacker to send multiple CCS messages, causing a denial of service for servers compiled with the NSS library. The highest threat from this vulnerability is to system availability. This flaw affects NSS versions before 3.58.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
83- NSS/NSSdescription
- Range: <3.58
- osv-coords81 versionspkg:rpm/almalinux/nsprpkg:rpm/almalinux/nspr-develpkg:rpm/almalinux/nsspkg:rpm/almalinux/nss-develpkg:rpm/almalinux/nss-softoknpkg:rpm/almalinux/nss-softokn-develpkg:rpm/almalinux/nss-softokn-freeblpkg:rpm/almalinux/nss-softokn-freebl-develpkg:rpm/almalinux/nss-sysinitpkg:rpm/almalinux/nss-toolspkg:rpm/almalinux/nss-utilpkg:rpm/almalinux/nss-util-develpkg:rpm/opensuse/mozilla-nss&distro=openSUSE%20Tumbleweedpkg:rpm/suse/mozilla-nspr&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Micro%205.0pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Manager%20Proxy%204.0pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Manager%20Server%204.0pkg:rpm/suse/mozilla-nspr&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/mozilla-nspr&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/mozilla-nspr&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/mozilla-nspr&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/mozilla-nss&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/mozilla-nss&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Micro%205.0pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/mozilla-nss&distro=SUSE%20Manager%20Proxy%204.0pkg:rpm/suse/mozilla-nss&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0pkg:rpm/suse/mozilla-nss&distro=SUSE%20Manager%20Server%204.0pkg:rpm/suse/mozilla-nss&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/mozilla-nss&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/mozilla-nss&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/mozilla-nss&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 4.32.0-1.el8_4+ 80 more
- (no CPE)range: < 4.32.0-1.el8_4
- (no CPE)range: < 4.32.0-1.el8_4
- (no CPE)range: < 3.67.0-6.el8_4
- (no CPE)range: < 3.67.0-6.el8_4
- (no CPE)range: < 3.67.0-6.el8_4
- (no CPE)range: < 3.67.0-6.el8_4
- (no CPE)range: < 3.67.0-6.el8_4
- (no CPE)range: < 3.67.0-6.el8_4
- (no CPE)range: < 3.67.0-6.el8_4
- (no CPE)range: < 3.67.0-6.el8_4
- (no CPE)range: < 3.67.0-6.el8_4
- (no CPE)range: < 3.67.0-6.el8_4
- (no CPE)range: < 3.69.1-1.2
- (no CPE)range: < 4.32-19.18.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-33.6.1
- (no CPE)range: < 4.32-33.6.1
- (no CPE)range: < 4.32-19.18.1
- (no CPE)range: < 4.32-19.18.1
- (no CPE)range: < 4.32-19.18.1
- (no CPE)range: < 4.32-19.18.1
- (no CPE)range: < 4.32-19.18.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-19.18.1
- (no CPE)range: < 4.32-19.18.1
- (no CPE)range: < 4.32-19.18.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-19.18.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-3.20.1
- (no CPE)range: < 4.32-19.18.1
- (no CPE)range: < 4.32-19.18.1
- (no CPE)range: < 4.32-19.18.1
- (no CPE)range: < 4.32-19.18.1
- (no CPE)range: < 3.68-58.54.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-47.16.1
- (no CPE)range: < 3.68-47.16.1
- (no CPE)range: < 3.68-58.54.1
- (no CPE)range: < 3.68-58.54.1
- (no CPE)range: < 3.68-58.54.1
- (no CPE)range: < 3.68-58.54.1
- (no CPE)range: < 3.68-58.54.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-58.54.1
- (no CPE)range: < 3.68-58.54.1
- (no CPE)range: < 3.68-58.54.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-58.54.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-3.56.1
- (no CPE)range: < 3.68-58.54.1
- (no CPE)range: < 3.68-58.54.1
- (no CPE)range: < 3.68-58.54.1
- (no CPE)range: < 3.68-58.54.1
Patches
Vulnerability mechanics
References
10- www.oracle.com//security-alerts/cpujul2021.htmlnvdPatchThird Party Advisory
- www.oracle.com/security-alerts/cpuoct2021.htmlnvdPatchThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
- developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.58_release_notesnvdRelease NotesVendor Advisory
- www.oracle.com/security-alerts/cpuapr2022.htmlnvdNot ApplicableThird Party Advisory
- lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3Envd
- lists.debian.org/debian-lts-announce/2023/10/msg00039.htmlnvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ERA5SVJQXQMDGES7RIT4F4NQVLD35RXN/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HRM53IQCPZT2US3M7JXTP6I6IBA5RGOD/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPOLN6DJUYQ3QBQEGLZGV73SNIPK7GHV/nvd
News mentions
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