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Vulnerability Intelligence

CVE-2019-11745

HIGH8.8

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

Published Jan 8, 2020

Modified 1 years ago

No fix available

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

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html ADVISORYhttps://access.redhat.com/errata/RHSA-2020:0243 ADVISORYhttps://access.redhat.com/errata/RHSA-2020:0466 WEBhttps://bugzilla.mozilla.org/show_bug.cgi?id=1586176 WEBhttps://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf WEBhttps://lists.debian.org/debian-lts-announce/2020/09/msg00029.html ADVISORYhttps://security.gentoo.org/glsa/202003-02 ADVISORYhttps://security.gentoo.org/glsa/202003-10 ADVISORYhttps://security.gentoo.org/glsa/202003-37 WEBhttps://us-cert.cisa.gov/ics/advisories/icsa-21-040-04 ADVISORYhttps://usn.ubuntu.com/4241-1/ADVISORYhttps://usn.ubuntu.com/4335-1/ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2019-11745 WEBhttps://www.mozilla.org/security/advisories/mfsa2019-36/WEBhttps://www.mozilla.org/security/advisories/mfsa2019-37/WEBhttps://www.mozilla.org/security/advisories/mfsa2019-38/

CVSS Analysis

CVSS v3.1

8.8

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

RequiredUI:R

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

8.8/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Ecosystems

Timeline

PublishedJan 8, 2020

ModifiedAug 4, 2024

CVE-2019-11745 | Mondoo Vulnerability Intelligence