libical: Heap buffer over-read in icaltime_from_string
Published Jan 27, 2017
7.5
HIGHCVSS 3.1
EPSS 3.07%
Description
The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted string to the icalparser_parse_string function.
Affected products
No data.
- 0.47
- 1.0.0
No data.
Red Hat Enterprise Linux 5
thunderbird
Will not fix
Red Hat Enterprise Linux 6
libical
Will not fix
Red Hat Enterprise Linux 6
thunderbird
Will not fix
Red Hat Enterprise Linux 7
libical
Will not fix
Red Hat Enterprise Linux 7
thunderbird
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | thunderbird | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | libical | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | thunderbird | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | libical | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | thunderbird | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.07% (0.03069) | 87.18th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.07% (0.03069) | 85.88th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.61% (0.00608) | 67.17th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.77% (0.01769) | 71.36th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.61% (0.00608) | 67.85th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.40% (0.00396) | 74.29th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.40% (0.00396) | 72.77th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.40% (0.00396) | 69.28th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
References (7)
- http://www.openwall.com/lists/oss-security/2016/06/25/4 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/91459 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-5827 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1281043 x_refsource_MISCIssue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=1350481 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-5827
- https://www.cve.org/CVERecord?id=CVE-2016-5827
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2016/06/25/4 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/91459 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2016-5827 | Vendor Advisory | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1281043 | x_refsource_MISCIssue Tracking | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1350481 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-5827 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-5827 |
Change history (0)
No recorded changes yet.