Bug 2515839 (CVE-2026-56862)
| Summary: | CVE-2026-56862 crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | aazores, abarbaro, akostadi, akoudelk, alebedev, alinfoot, alizardo, amasferr, amctagga, anjoseph, anpicker, ansmith, anthomas, aoconnor, aruklets, asatyam, bbrownin, bniver, bparees, chfoley, ckandaga, cmah, crizzo, dakwon, dhanak, diagrawa, dkeler, dmayorov, doconnor, drosa, dschmidt, dsimansk, dtrifiro, dymurray, eaguilar, ebaron, eborisov, eglynn, ehelms, flucifre, gbenhaim, ggainey, gmeno, gparvin, groman, hasun, ibolton, jbritton, jburrell, jcantril, jchui, jeder, jfula, jhe, jjoyce, jlanda, jlledo, jmatsuok, jmatthew, jmontleo, jowilson, jpasqual, jprabhak, jpretori, jschluet, jtolenti, juwatts, kingland, kshier, ktsao, lball, lbragsta, lchilton, lgamliel, lhh, mbenjamin, mburns, mdellweg, mgarciac, mhackett, mhulan, mnovotny, mrunge, mwringe, nboldt, ngough, niyer, nmoumoul, nyancey, oaljalju, ometelka, osousa, pantinor, pcreech, pgaikwad, pjindal, psrna, ptisnovs, pvasanth, rbryant, rchan, rekumar, rgodfrey, rhaigner, rhel-process-autobot, rjohnson, rojacob, sabiswas, sakbas, sausingh, sbratsla, sdawley, sfeifer, simaishi, slucidi, smallamp, sostapov, sseago, stcannon, suppawar, swoodman, syedriko, teagle, thason, tmalecek, tsedmik, twaugh, tzivkovi, vereddy, veshanka, vimartin, vkarehfa, vvoronko, watson-tool-maintainers, weaton, wenshen, whayutin, wtam, xdharmai, yguenane |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in the `crypto/tls` package, part of `golang`. A malicious client can exploit this vulnerability by continuously sending KeyUpdate messages to a server. This forces the server to perform indefinite key derivation operations, leading to resource exhaustion and a Denial of Service (DoS) condition.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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Description
OSIDB Bzimport
2026-08-13 22:25:13 UTC
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