CVE-2019-20797

An issue was discovered in e6y prboom-plus 2.5.1.5. There is a buffer overflow in client and server code responsible for handling received UDP packets, as demonstrated by I_SendPacket or I_SendPacketTo in i_network.c.

• CWE-787

• http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00027.html
• http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00028.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/77J22ZEQXS5SAYZGBDJ475AKFFJNKX5L/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3WS7GRZUIHCGLFET33MGC3PEKCH37W6/
• https://logicaltrust.net/blog/2019/10/prboom1.htmlExploit, Third Party Advisory
• https://sourceforge.net/p/prboom-plus/bugs/252/Third Party Advisory
• https://sourceforge.net/p/prboom-plus/bugs/253/Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00027.html
• http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00028.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/77J22ZEQXS5SAYZGBDJ475AKFFJNKX5L/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3WS7GRZUIHCGLFET33MGC3PEKCH37W6/
• https://logicaltrust.net/blog/2019/10/prboom1.htmlExploit, Third Party Advisory
• https://sourceforge.net/p/prboom-plus/bugs/252/Third Party Advisory
• https://sourceforge.net/p/prboom-plus/bugs/253/Third Party Advisory

Published

May 18, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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