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UBUNTU-CVE-2019-11745

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UBUNTU-CVE-2019-11745

Published: 25 Nov 2019Last Modified: 22 Apr 2026

Upstream:

Aliases:

Summary:

Details: 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.

References: https://ubuntu.com/security/CVE-2019-11745, https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.44.3_release_notes, https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.47.1_release_notes, https://www.mozilla.org/en-US/security/advisories/mfsa2019-38/#CVE-2019-11745, https://ubuntu.com/security/notices/USN-4203-1, https://ubuntu.com/security/notices/USN-4203-2, https://ubuntu.com/security/notices/USN-4216-1, https://ubuntu.com/security/notices/USN-4216-2, https://ubuntu.com/security/notices/USN-4241-1, https://ubuntu.com/security/notices/USN-4335-1, https://www.cve.org/CVERecord?id=CVE-2019-11745

Affected packages

Package

Name: nss

Purl: pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.14.04.5+esm2?arch=source&distro=trusty/esm

Affected ranges

Type: ECOSYSTEM

Events:

Introduced- 0

Fixed -2:3.28.4-0ubuntu0.14.04.5+esm2

Affected versions

2:3.15.1-1ubuntu1

2:3.15.2-1

2:3.15.3-1

2:3.15.3.1-1

2:3.15.3.1-1.1

2:3.15.3.1-1.1ubuntu1

2:3.15.4-1ubuntu3

2:3.15.4-1ubuntu4

2:3.15.4-1ubuntu5

2:3.15.4-1ubuntu6

2:3.15.4-1ubuntu7

2:3.15.4-1ubuntu7.1

Common Vulnerability Scoring System

Attack Vector

Network

Adjacent

Local

Physical

Privileges Required

None

Low

High

User Interaction

None

Required

Scope

Unchanged

Changed

Confidentiality

None

Low

High

Integrity

None

Low

High

Availability

None

Low

High