CVE-2019-11356: canonical ubuntu_linux Out-of-bounds Write
CVSS: 9.8v3.1CriticalModified
AliasesMGASA-2019-0219RHSA-2019:1771UBUNTU-CVE-2019-11356DEBIAN-CVE-2019-11356DSA-4458-1
Published 03-06-2019Last modified 04-08-2024
Vulnerability summary
CVE-2019-11356 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in canonical ubuntu_linux. EPSS estimates a 7.62% chance of exploitation in the next 30 days, higher than 94.5% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
7.62%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 03-06-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
The CalDAV feature in httpd in Cyrus IMAP 2.5.x through 2.5.12 and 3.0.x through 3.0.9 allows remote attackers to execute arbitrary code via a crafted HTTP PUT operation for an event with a long iCalendar property name.
CVSS metrics
6 scores · 4 sources · 3 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Medium 5.6Preferred score · OSV · Red hat (Ecosystem advisory) · calculated from vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:LSources2 sources · 5.6–9.8
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HDiffers
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
7.62%
Chance of exploitation in the next 30 days
Percentile
95%
Versus all other CVEs
30-day change
0.00 pp
From 7.62% on 20-09-2026
20-09-202620-10-2026
EPSS score7.62%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat11 products
- enterprise_linux8.0
- enterprise_linux_eus8.1 | 8.2 | 8.4
- enterprise_linux_server_aus8.2 | 8.4
- enterprise_linux_server_tus8.2 | 8.4
- cyrus-imapd< 0:3.0.7-15.el8_0.1
Debian2 products
- cyrus-imapd< 3.0.8-6 | < 2.5.10-3+deb9u1
- debian_linuxEOL9.0
Mageia2 products
- cyrus-imapd< 2.5.11-1.1.mga6
- cyrus-imapd< 2.5.11-7.1.mga7
Canonical1 product
- ubuntu_linuxEOL18.04
Cyrus1 product
- imap≥ 2.5.0, ≤ 2.5.12 | ≥ 3.0.0, ≤ 3.0.9
Fedoraproject1 product
- fedoraEOL29 | 30
Ubuntu1 product
- cyrus-imapd< 2.5.10-3ubuntu1.1
7 vendors · 19 products
References
23 links- www.cyrusimap.org/imap/download/release-notes/2.5/index.htmlX Refsource MISCRelease NotesVendor AdvisoryREPORT
- www.cyrusimap.org/imap/download/release-notes/3.0/index.htmlX Refsource MISCRelease NotesVendor AdvisoryREPORT
- www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.13.htmlX Refsource MISCRelease NotesVendor AdvisoryREPORT
- www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.10.htmlX Refsource MISCRelease NotesVendor AdvisoryREPORT
- access.redhat.com/errata/RHSA-2019:1771Vendor AdvisoryX Refsource REDHATThird Party AdvisoryWEBAdvisory
