Description
libical 1.0 allows remote attackers to cause a denial of service (use-after-free) via a crafted ics file.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | thunderbird | 1:60.5.0-1 | — |
| Debian 13 | thunderbird | 1:60.5.0-1 | — |
| Debian 12 | thunderbird | 1:60.5.0-1 | — |
| Debian 7 | libical | 0.48-2+deb7u1 | DLA-959-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | libical | No fix yet | — |
| Ubuntu 18.04 LTS | thunderbird | 1:60.5.1+build2-0ubuntu0.18.04.1 | USN-3897-1 |
| Ubuntu 16.04 LTS | libical | No fix yet | — |
| Ubuntu 16.04 LTS | thunderbird | 1:60.5.1+build2-0ubuntu0.16.04.1 | USN-3897-1 |
| Ubuntu 14.04 LTS | thunderbird | 1:60.5.1+build2-0ubuntu0.14.04.1 | USN-3897-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | thunderbird | 60.5.0-1.el7_6 | RHSA-2019:0270 |
| RHEL 6 | thunderbird | 60.5.0-1.el6_10 | RHSA-2019:0269 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | MozillaThunderbird | 60.5.0-3.20.2 | SUSE-SU-2019:0338-1 |
| SLES 12 SP3 | libical | 1.0.1-16.3.1 | SUSE-SU-2017:1989-1 |
| SLES 12 SP2 | libical | 1.0.1-16.3.1 | SUSE-SU-2017:1989-1 |
| SLES 11 SP4 | libical | 0.43-1.10.6.1 | SUSE-SU-2018:0119-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | libical | 1.0.1-16.3.1 | SUSE-SU-2017:1989-1 |
| SLES for SAP 12 SP2 | libical | 1.0.1-16.3.1 | SUSE-SU-2017:1989-1 |
| SLES for SAP 11 SP4 | libical | 0.43-1.10.6.1 | SUSE-SU-2018:0119-1 |
| SUSE Package Hub 12 | MozillaThunderbird | 60.5.1-79.1 | openSUSE-SU-2019:0249-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaThunderbird | 91.1.1-1.1 | openSUSE-SU-2024:10601-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | thunderbird | 60.5.0-1.0.1.el7_6 | ELSA-2019-0270 |
Advisories 10
- RHSA-2019:0270 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2019:0269 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-3897-1 thunderbird vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-959-1 libical - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2017:1989-1 Security update for libical SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0338-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0119-1 Recommended update for libical SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10601-1 MozillaThunderbird-91.1.1-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- openSUSE-SU-2019:0249-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2019-0270 Important: thunderbird security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Feb 4, 2019
References
- https://github.com/libical/libical/issues/235
- USN-3897-1 vendor-advisory
- RHSA-2019:0269 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1275400
- [oss-security] 20170120 Re: CVE-2016-9584: heap use-after-free on libical mailing-list
- https://github.com/libical/libical/issues/251
- 91459 vdb-entry
- [oss-security] 20160625 Re: libical 0.47 SEGV on unknown address mailing-list
- https://github.com/libical/libical/issues/286
- RHSA-2019:0270 vendor-advisory
- GLSA-201904-02 vendor-advisory
- GLSA-201904-07 vendor-advisory