[SECURITY] Fedora 44 Update: libical-3.0.20-8.fc44

Reference implementation of the iCalendar data type and serialization format used in dozens of calendaring and scheduling products...

Fedora 44 : libical (2026-a76bba1412)

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-a76bba1412 advisory. Add a patch for CVE-2026-88383: Denial of Service via crafted iCalendar property parsing Tenable has extracted the preceding description block directly from...

CVE-2026-88383

A flaw was found in libical. When parsing calendar data containing parameterized properties, the library improperly invokes an internal search callback due to a function pointer mismatch. An attacker could exploit this vulnerability by providing specially crafted iCalendar data to an application...

DEBIAN-CVE-2026-88383

libical 4.0.6 contains an incompatible function pointer in icalparameterstringtokind. When parsing iCalendar data containing a parameterized property, the function passes icalparametercomparekindmap to bsearch through an incompatible comparator function pointer type. bsearch invokes the callback...

AZL-106797 CVE-2026-88383 affecting package libical 3.0.10-1

libical 4.0.6 contains an incompatible function pointer in icalparameterstringtokind. When parsing iCalendar data containing a parameterized property, the function passes icalparametercomparekindmap to bsearch through an incompatible comparator function pointer type. bsearch invokes the callback...

CVE-2026-88383

libical 4.0.6 contains an incompatible function pointer in icalparameterstringtokind. When parsing iCalendar data containing a parameterized property, the function passes icalparametercomparekindmap to bsearch through an incompatible comparator function pointer type. bsearch invokes the callback...

UBUNTU-CVE-2026-88383

libical 4.0.6 contains an incompatible function pointer in icalparameterstringtokind. When parsing iCalendar data containing a parameterized property, the function passes icalparametercomparekindmap to bsearch through an incompatible comparator function pointer type. bsearch invokes the callback...

CVE-2026-88383: Access of Resource Using Incompatible Type

libical 4.0.6 contains an incompatible function pointer in icalparameterstringtokind. When parsing iCalendar data containing a parameterized property, the function passes icalparametercomparekindmap to bsearch through an incompatible comparator function pointer type. bsearch invokes the callback...

EUVD-2026-86316

libical 4.0.6 contains an incompatible function pointer in icalparameterstringtokind. When parsing iCalendar data containing a parameterized property, the function passes icalparametercomparekindmap to bsearch through an incompatible comparator function pointer type. bsearch invokes the callback...

CVE-2026-88383

The libical 4.0.6 library is vulnerable to a denial of service due to an incompatible function pointer in icalparameter_string_to_kind() . When parsing iCalendar data with a parameterized property, the function incorrectly passes icalparameter_compare_kind_map() to bsearch() through a mismatched ...

CVE-2026-88383

libical 4.0.6 contains an incompatible function pointer in icalparameterstringtokind. When parsing iCalendar data containing a parameterized property, the function passes icalparametercomparekindmap to bsearch through an incompatible comparator function pointer type. bsearch invokes the callback...

PT-2026-98151

Name of the Vulnerable Software and Affected Versions libical version 4.0.6 Description An incompatible function pointer exists in the icalparameter string to kind function. When parsing iCalendar data that includes a parameterized property, the function passes icalparameter compare kind map to...

CVE-2026-88383

libical 4.0.6 contains an incompatible function pointer in icalparameterstringtokind. When parsing iCalendar data containing a parameterized property, the function passes icalparametercomparekindmap to bsearch through an incompatible comparator function pointer type. bsearch invokes the callback...

CVE-2026-88383

libical 4.0.6 contains an incompatible function pointer in icalparameterstringtokind. When parsing iCalendar data containing a parameterized property, the function passes icalparametercomparekindmap to bsearch through an incompatible comparator function pointer type. bsearch invokes the callback...

Linux Distros Unpatched Vulnerability : CVE-2026-88383

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libical 4.0.6 contains an incompatible function pointer in icalparameterstringtokind. When parsing iCalendar data containing a parameterized property, the...

libical:libicalvcard_fuzzer: Use-of-uninitialized-value in vcardtime_from_string

Project: https://github.com/libical/libical.git Detailed Report: https://oss-fuzz.com/testcase?key=6040898940239872 Project: libical Fuzzing Engine: libFuzzer Fuzz Target: libicalvcardfuzzer Job Type: libfuzzermsanlibical Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Address:...

libical:libicalvcard_fuzzer: Crash in strncasecmp

Project: https://github.com/libical/libical.git Detailed Report: https://oss-fuzz.com/testcase?key=6010123784093696 Project: libical Fuzzing Engine: libFuzzer Fuzz Target: libicalvcardfuzzer Job Type: libfuzzerubsanlibical Platform Id: linux Crash Type: UNKNOWN READ Crash Address: 0x000000002710...

libical:libicalvcard_fuzzer: Heap-buffer-overflow in vcardstructured_new_from_string

Project: https://github.com/libical/libical.git Detailed Report: https://oss-fuzz.com/testcase?key=6495267754147840 Project: libical Fuzzing Engine: afl Fuzz Target: libicalvcardfuzzer Job Type: aflasanlibical Platform Id: linux Crash Type: Heap-buffer-overflow WRITE 8 Crash Address: 0x7cb1f8ee01...

libical:libicalvcard_fuzzer: Heap-use-after-free in vcardproperty_get_value

Project: https://github.com/libical/libical.git Detailed Report: https://oss-fuzz.com/testcase?key=6586677341782016 Project: libical Fuzzing Engine: libFuzzer Fuzz Target: libicalvcardfuzzer Job Type: libfuzzerasanlibical Platform Id: linux Crash Type: Heap-use-after-free READ 8 Crash Address:...

libical:libicalvcard_fuzzer: Segv on unknown address in icalarray_append

Project: https://github.com/libical/libical.git Detailed Report: https://oss-fuzz.com/testcase?key=6701878934306816 Project: libical Fuzzing Engine: libFuzzer Fuzz Target: libicalvcardfuzzer Job Type: libfuzzermsanlibical Platform Id: linux Crash Type: Segv on unknown address Crash Address: Crash...