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Vulnerability details: VCID-bfum-nhsw-aaac
Vulnerability ID VCID-bfum-nhsw-aaac
Aliases CVE-2019-11705
Summary A flaw in Thunderbird's implementation of iCal causes a stack buffer overflow in icalrecur_add_bydayrules when processing certain email messages, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7.1.
Status Published
Exploitability 2.0
Weighted Severity 8.8
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-787 Out-of-bounds Write
CWE-121 Stack-based Buffer Overflow
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-11705.html
rhas Important https://access.redhat.com/errata/RHSA-2019:1623
rhas Important https://access.redhat.com/errata/RHSA-2019:1624
rhas Important https://access.redhat.com/errata/RHSA-2019:1626
cvssv3 9.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-11705.json
epss 0.08145 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
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epss 0.08145 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
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epss 0.08145 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
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epss 0.08145 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.08145 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.08145 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.08145 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.08145 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
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epss 0.08708 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.19549 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.19549 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
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epss 0.19549 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.19549 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.19549 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.19549 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.19549 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.19549 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.19549 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.19549 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.27594 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.33323 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.33323 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.33323 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
epss 0.33323 https://api.first.org/data/v1/epss?cve=CVE-2019-11705
generic_textual Medium https://bugzilla.mozilla.org/show_bug.cgi?id=1553808
rhbs high https://bugzilla.redhat.com/show_bug.cgi?id=1720008
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11703
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11704
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11705
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11706
cvssv3 9.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-11705
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2019-11705
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2019-11705
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2019-11705
archlinux High https://security.archlinux.org/AVG-980
generic_textual Low https://ubuntu.com/security/notices/USN-4028-1
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2019-17
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2019-17/#CVE-2019-11705
generic_textual Medium https://www.openwall.com/lists/oss-security/2019/06/13/3
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-11705.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-11705.json
https://api.first.org/data/v1/epss?cve=CVE-2019-11705
https://bugzilla.mozilla.org/show_bug.cgi?id=1553808
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11703
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11704
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11705
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11706
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://security.gentoo.org/glsa/201908-20
https://ubuntu.com/security/notices/USN-4028-1
https://www.mozilla.org/en-US/security/advisories/mfsa2019-17/#CVE-2019-11705
https://www.mozilla.org/security/advisories/mfsa2019-17/
https://www.openwall.com/lists/oss-security/2019/06/13/3
1720008 https://bugzilla.redhat.com/show_bug.cgi?id=1720008
ASA-201906-10 https://security.archlinux.org/ASA-201906-10
AVG-980 https://security.archlinux.org/AVG-980
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
CVE-2019-11705 Exploit https://github.com/x41sec/advisories/tree/master/X41-2019-003
CVE-2019-11705 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/dos/47004.txt
CVE-2019-11705 https://nvd.nist.gov/vuln/detail/CVE-2019-11705
mfsa2019-17 https://www.mozilla.org/en-US/security/advisories/mfsa2019-17
RHSA-2019:1623 https://access.redhat.com/errata/RHSA-2019:1623
RHSA-2019:1624 https://access.redhat.com/errata/RHSA-2019:1624
RHSA-2019:1626 https://access.redhat.com/errata/RHSA-2019:1626
USN-4028-1 https://usn.ubuntu.com/4028-1/
Data source Exploit-DB
Date added June 17, 2019
Description Thunderbird ESR < 60.7.XXX - 'icalrecur_add_bydayrules' Stack-Based Buffer Overflow
Ransomware campaign use Unknown
Source publication date June 17, 2019
Exploit type dos
Platform multiple
Source update date June 17, 2019
Source URL https://github.com/x41sec/advisories/tree/master/X41-2019-003
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-11705.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-11705
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-11705
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-11705
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-11705
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.91374
EPSS Score 0.08145
Published At March 28, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.