CVE-2016-5824

libical 1.0 allows remote attackers to cause a denial of service (use-after-free) via a crafted ics file.

• CWE-416

• http://www.openwall.com/lists/oss-security/2016/06/25/4Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2017/01/20/16Mailing List, Patch, Third Party Advisory
• http://www.securityfocus.com/bid/91459Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2019:0269Third Party Advisory
• https://access.redhat.com/errata/RHSA-2019:0270Third Party Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1275400Issue Tracking
• https://github.com/libical/libical/issues/235Issue Tracking, Patch, Third Party Advisory
• https://github.com/libical/libical/issues/251Issue Tracking, Patch, Third Party Advisory
• https://github.com/libical/libical/issues/286Issue Tracking, Patch, Third Party Advisory
• https://security.gentoo.org/glsa/201904-02
• https://security.gentoo.org/glsa/201904-07
• https://usn.ubuntu.com/3897-1/Third Party Advisory
• http://www.openwall.com/lists/oss-security/2016/06/25/4Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2017/01/20/16Mailing List, Patch, Third Party Advisory
• http://www.securityfocus.com/bid/91459Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2019:0269Third Party Advisory
• https://access.redhat.com/errata/RHSA-2019:0270Third Party Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1275400Issue Tracking
• https://github.com/libical/libical/issues/235Issue Tracking, Patch, Third Party Advisory
• https://github.com/libical/libical/issues/251Issue Tracking, Patch, Third Party Advisory
• https://github.com/libical/libical/issues/286Issue Tracking, Patch, Third Party Advisory
• https://security.gentoo.org/glsa/201904-02
• https://security.gentoo.org/glsa/201904-07
• https://usn.ubuntu.com/3897-1/Third Party Advisory

Published

Jan 27, 2017

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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