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CVE Descriptions
Multiple heap-based buffer overflows in the modpow function in PuTTY before 0.55 allow (1) remote attackers to execute arbitrary code via an SSH2 packet with a base argument that is larger than the mod argument, which causes the modpow function to write memory before the beginning of its buffer, and (2) remote malicious servers to cause a denial of service (client crash) and possibly execute arbitrary code via a large bignum during authentication.
CVE Informations
Metrics
| Metrics | Score | Severity | CVSS Vector | Source |
|---|---|---|---|---|
| V2 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P | nvd@nist.gov |
EPSS
EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.
EPSS Score
The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.
EPSS Percentile
The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
Products Mentioned
Configuraton 0
Putty>>Putty >> Version 0.48
- Putty>>Putty >> Version 0.48 (Open CPE detail)
Putty>>Putty >> Version 0.49
- Putty>>Putty >> Version 0.49 (Open CPE detail)
Putty>>Putty >> Version 0.50
- Putty>>Putty >> Version 0.50 (Open CPE detail)
Putty>>Putty >> Version 0.51
- Putty>>Putty >> Version 0.51 (Open CPE detail)
Putty>>Putty >> Version 0.52
- Putty>>Putty >> Version 0.52 (Open CPE detail)
Putty>>Putty >> Version 0.53
- Putty>>Putty >> Version 0.53 (Open CPE detail)
Putty>>Putty >> Version 0.53b
- Putty>>Putty >> Version 0.53b (Open CPE detail)
Putty>>Putty >> Version 0.54
- Putty>>Putty >> Version 0.54 (Open CPE detail)
References
http://www.gentoo.org/security/en/glsa/glsa-200408-04.xml
Tags : vendor-advisory, x_refsource_GENTOO
Tags : vendor-advisory, x_refsource_GENTOO
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modpow.html
Tags : x_refsource_CONFIRM
Tags : x_refsource_CONFIRM
The information presented on CVE Find originates from several carefully selected reference sources. CVE data is provided by MITRE Corporation and the National Vulnerability Database (NVD). The Known Exploited Vulnerabilities (KEV) catalog is sourced from the Cybersecurity and Infrastructure Security Agency (CISA), while EPSS scores come from FIRST.org. Additionally, data regarding software weaknesses (CWE) and common attack patterns (CAPEC) is maintained by MITRE Corporation, and information on hardware and software configurations (CPE) is provided by the NVD.