NVD Vulnerability Detail

CVE-2019-11745

Summary	When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the block size, a small out of bounds write could occur. This could have caused heap corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
Publication Date	Jan. 9, 2020, 5:15 a.m.
Registration Date	Jan. 26, 2021, 11:38 a.m.
Last Update	Nov. 21, 2024, 1:21 p.m.

CVSS3.1 : HIGH
スコア	8.8
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	低
攻撃に必要な特権レベル(PR)	不要
利用者の関与(UI)	要
影響の想定範囲(S)	変更なし
機密性への影響(C)	高
完全性への影響(I)	高
可用性への影響(A)	高

CVSS2.0 : MEDIUM
Score	6.8
Vector	AV:N/AC:M/Au:N/C:P/I:P/A:P
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	中
攻撃前の認証要否(Au)	不要
機密性への影響(C)	低
完全性への影響(I)	低
可用性への影響(A)	低
Get all privileges.	いいえ
Get user privileges	いいえ
Get other privileges	いいえ
User operation required	はい

Affected software configurations

Configuration1	or higher	or less	more than	less than
cpe:2.3:a:mozilla:firefox::::::::				71.0
cpe:2.3:a:mozilla:firefox_esr::::::::				68.3
cpe:2.3:a:mozilla:thunderbird::::::::				68.3.0

Configuration2		or higher	or less	more than	less than
cpe:2.3:o:opensuse:leap:15.1:::::::*

Configuration3	or higher	or less	more than	less than
cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:19.10:::::::*

Configuration4		or higher	or less	more than	less than
cpe:2.3:o:debian:debian_linux:9.0:::::::*

Configuration5		or higher	or less	more than	less than
cpe:2.3:o:redhat:enterprise_linux_server_aus:6.6:::::::*

Configuration6		or higher	or less	more than	less than
cpe:2.3:o:siemens:ruggedcom_rox_mx5000_firmware::::::::					2.14.0
execution environment
1	cpe:2.3:h:siemens:ruggedcom_rox_mx5000:-:::::::*

Configuration7		or higher	or less	more than	less than
cpe:2.3:o:siemens:ruggedcom_rox_rx1400_firmware::::::::					2.14.0
execution environment
1	cpe:2.3:h:siemens:ruggedcom_rox_rx1400:-:::::::*

Configuration8		or higher	or less	more than	less than
cpe:2.3:o:siemens:ruggedcom_rox_rx1500_firmware::::::::					2.14.0
execution environment
1	cpe:2.3:h:siemens:ruggedcom_rox_rx1500:-:::::::*

Configuration9		or higher	or less	more than	less than
cpe:2.3:o:siemens:ruggedcom_rox_rx1501_firmware::::::::					2.14.0
execution environment
1	cpe:2.3:h:siemens:ruggedcom_rox_rx1501:-:::::::*

Configuration10		or higher	or less	more than	less than
cpe:2.3:o:siemens:ruggedcom_rox_rx1510_firmware::::::::					2.14.0
execution environment
1	cpe:2.3:h:siemens:ruggedcom_rox_rx1510:-:::::::*

Configuration11		or higher	or less	more than	less than
cpe:2.3:o:siemens:ruggedcom_rox_rx1511_firmware::::::::					2.14.0
execution environment
1	cpe:2.3:h:siemens:ruggedcom_rox_rx1511:-:::::::*

Configuration12		or higher	or less	more than	less than
cpe:2.3:o:siemens:ruggedcom_rox_rx1512_firmware::::::::					2.14.0
execution environment
1	cpe:2.3:h:siemens:ruggedcom_rox_rx1512:-:::::::*

Configuration13		or higher	or less	more than	less than
cpe:2.3:o:siemens:ruggedcom_rox_rx5000_firmware::::::::					2.14.0
execution environment
1	cpe:2.3:h:siemens:ruggedcom_rox_rx5000:-:::::::*

Related information, measures and tools

No	URL	タグ
1	http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html	Mailing List Third Party Advisory
2	http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html	Mailing List Third Party Advisory
3	http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html	Issue Tracking Mailing List Third Party Advisory
4	http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html	Issue Tracking Mailing List Third Party Advisory
5	http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html	Mailing List Third Party Advisory
6	http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html	Mailing List Third Party Advisory
7	https://access.redhat.com/errata/RHSA-2020:0243	Third Party Advisory
8	https://access.redhat.com/errata/RHSA-2020:0243	Third Party Advisory
9	https://access.redhat.com/errata/RHSA-2020:0466	Third Party Advisory
10	https://access.redhat.com/errata/RHSA-2020:0466	Third Party Advisory
11	https://bugzilla.mozilla.org/show_bug.cgi?id=1586176	Issue Tracking Patch Vendor Advisory
12	https://bugzilla.mozilla.org/show_bug.cgi?id=1586176	Issue Tracking Patch Vendor Advisory
13	https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf	Third Party Advisory
14	https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf	Third Party Advisory
15	https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html	Mailing List Third Party Advisory
16	https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html	Mailing List Third Party Advisory
17	https://security.gentoo.org/glsa/202003-02	Third Party Advisory
18	https://security.gentoo.org/glsa/202003-02	Third Party Advisory
19	https://security.gentoo.org/glsa/202003-10	Third Party Advisory
20	https://security.gentoo.org/glsa/202003-10	Third Party Advisory
21	https://security.gentoo.org/glsa/202003-37	Third Party Advisory
22	https://security.gentoo.org/glsa/202003-37	Third Party Advisory
23	https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04	Third Party Advisory US Government Resource
24	https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04	Third Party Advisory US Government Resource
25	https://usn.ubuntu.com/4241-1/	Third Party Advisory
26	https://usn.ubuntu.com/4241-1/	Third Party Advisory
27	https://usn.ubuntu.com/4335-1/	Third Party Advisory
28	https://usn.ubuntu.com/4335-1/	Third Party Advisory
29	https://www.mozilla.org/security/advisories/mfsa2019-36/	Vendor Advisory
30	https://www.mozilla.org/security/advisories/mfsa2019-36/	Vendor Advisory
31	https://www.mozilla.org/security/advisories/mfsa2019-37/	Vendor Advisory
32	https://www.mozilla.org/security/advisories/mfsa2019-37/	Vendor Advisory
33	https://www.mozilla.org/security/advisories/mfsa2019-38/	Vendor Advisory
34	https://www.mozilla.org/security/advisories/mfsa2019-38/	Vendor Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-787	境界外書き込み	https://cwe.mitre.org/data/definitions/787.html

JVN Vulnerability Information

Firefox および Thunderbird における境界外書き込みに関する脆弱性

Title	Firefox および Thunderbird における境界外書き込みに関する脆弱性
Summary	Firefox および Thunderbird には、境界外書き込みに関する脆弱性が存在します。
Possible impacts	情報を取得される、情報を改ざんされる、およびサービス運用妨害 (DoS) 状態にされる可能性があります。
Solution	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	Dec. 3, 2019, midnight
Registration Date	Jan. 23, 2020, 10:44 a.m.
Last Update	Feb. 17, 2021, 5 p.m.

Affected System

Mozilla Foundation

Mozilla Firefox 71 未満

Mozilla Firefox ESR 68.3 未満

Mozilla Thunderbird 68.3 未満

openSUSE project

openSUSE Leap

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2019-11745	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11745
National Vulnerability Database (NVD)
2	CVE-2019-11745	https://nvd.nist.gov/vuln/detail/CVE-2019-11745

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-787	https://cwe.mitre.org/data/definitions/787.html

ベンダー情報

No	Name	URL
Mozilla Foundation Security Advisory
1	MFSA2019-36	https://www.mozilla.org/en-US/security/advisories/mfsa2019-36/
2	MFSA2019-37	https://www.mozilla.org/en-US/security/advisories/mfsa2019-37/
3	MFSA2019-38	https://www.mozilla.org/en-US/security/advisories/mfsa2019-38/
opensuse-security-announce
4	openSUSE-SU-2020:0002-1	https://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html
5	openSUSE-SU-2020:0003-1	https://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html
6	openSUSE-SU-2020:0008-1	https://lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html

その他

No	Name	URL
ICS-CERT ADVISORY
1	ICSA-21-040-04	https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04
JVN
2	JVNVU#91083521	https://jvn.jp/vu/JVNVU91083521/

Change Log

No	Changed Details	Date of change
2	[2021年02月15日] 参考情報：JVN (JVNVU#91083521) を追加	Feb. 15, 2021, 5:23 p.m.
1	[2020年01月23日] 掲載	Jan. 23, 2020, 10:44 a.m.
3	[2021年02月17日] 参考情報：ICS-CERT ADVISORY (ICSA-21-040-04) を追加	Feb. 17, 2021, 4:27 p.m.