Integer Overflow or Wraparound Affecting firefox-esr package, versions <78.10.0esr-1~deb10u1
Snyk CVSS
Attack Complexity
Low
User Interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Threat Intelligence
EPSS
0.29% (69th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN10-FIREFOXESR-1251760
- published 20 Apr 2021
- disclosed 24 Jun 2021
Introduced: 20 Apr 2021
CVE-2021-29946 Open this link in a new tabHow to fix?
Upgrade Debian:10
firefox-esr
to version 78.10.0esr-1~deb10u1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream firefox-esr
package and not the firefox-esr
package as distributed by Debian
.
See How to fix?
for Debian:10
relevant fixed versions and status.
Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc header. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.