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CVE-2012-4562

Multiple integer overflows in libssh before 0.5.3 allow remote attackers to cause a denial of...

7.5 HighFix available

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.

Exploit likelihood

12.8%Up 4.6 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

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.

Record
CVE-2012-4562
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-189
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2012-4562
Updated
2026-11-02
EUVDEUVD-2012-4490 No score

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.

Record
EUVD-2012-4490
Updated
2026-11-03
GitHub AdvisoriesGHSA-44f3-h584-r9pm No score

Multiple integer overflows in libssh before 0.5.3 allow remote attackers to cause a denial of...

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.

Record
GHSA-44f3-h584-r9pm
Updated
2026-11-02
OSV No score

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.

Record
CVE-2012-4562
Updated
2026-11-02
OSVDEBIAN-CVE-2012-4562 No score

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.

Record
DEBIAN-CVE-2012-4562
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
libssh
Debian:12
before 0.5.3-1
0.5.3-1
libssh
Debian:13
before 0.5.3-1
0.5.3-1
libssh
Debian:14
before 0.5.3-1
0.5.3-1
libssh
Debian:6.0
before 0.4.5-3+squeeze1, plus listed versions
0.4.5-3
0.4.5-3+squeeze1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2012-4562 is a high vulnerability (CVSS 7.5) in Libssh, published November 30, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 12.8%, the 96th percentile. Fixed in libssh 0.5.3-1.

References

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