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Bug 789399 (CVE-2020-13529) - <sys-apps/systemd-{248.5,249}: DHCP ack spoofing (CVE-2020-13529)
Summary: <sys-apps/systemd-{248.5,249}: DHCP ack spoofing (CVE-2020-13529)
Status: RESOLVED FIXED
Alias: CVE-2020-13529
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Security
URL: https://github.com/systemd/systemd/is...
Whiteboard: A3 [glsa+ cve]
Keywords:
Depends on: CVE-2021-33910
Blocks:
  Show dependency tree
 
Reported: 2021-05-11 08:02 UTC by Sam James
Modified: 2021-07-20 19:22 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


Attachments

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Description Sam James archtester gentoo-dev Security 2021-05-11 08:02:09 UTC
Description:
"An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server."

Disclosure: https://talosintelligence.com/vulnerability_reports/TALOS-2020-1142

Bug: https://github.com/systemd/systemd/issues/16774
Comment 1 GLSAMaker/CVETool Bot gentoo-dev 2021-07-20 19:21:44 UTC
This issue was resolved and addressed in
 GLSA 202107-48 at https://security.gentoo.org/glsa/202107-48
by GLSA coordinator Sam James (sam_c).
Comment 2 Sam James archtester gentoo-dev Security 2021-07-20 19:22:22 UTC
All done.