CVE-2019-11745

nss: Out-of-bounds write when passing an output buffer smaller than the block size to NSC_EncryptUpdate

Published Jan 8, 2020 CVSS 3.1 · 8.8 High EPSS 3.0% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-2008-1 nss security update
Debian DLA Debian DLA DLA-2388-1 nss security update
Debian DSA Debian DSA DSA-4579-1 nss security update
EUVD EUVD EUVD-2019-3415 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.
Ubuntu USN Ubuntu USN USN-4203-1 NSS vulnerability
Ubuntu USN Ubuntu USN USN-4203-2 NSS vulnerability
Ubuntu USN Ubuntu USN USN-4216-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-4216-2 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-4241-1 Thunderbird vulnerabilities
Ubuntu USN Ubuntu USN USN-4335-1 Thunderbird vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Aug 4, 2024, 11:03 PM
Reserved
May 3, 2019, 12:00 AM
Status
Modified
Published
Jan 8, 2020, 8:15 PM
Modified
Jun 17, 2026, 2:13 AM
Severity
Important
Public date
Nov 21, 2019, 12:00 AM