CVE-2015-5309
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
9.8 High
AI Score
Confidence
High
0.021 Low
EPSS
Percentile
89.4%
Integer overflow in the terminal emulator in PuTTY before 0.66 allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via an ECH (erase characters) escape sequence with a large parameter value, which triggers a buffer underflow.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| opensuse:leap | opensuse leap | eq | 42.1 |
| opensuse:opensuse | opensuse | eq | 13.1 |
| opensuse:opensuse | opensuse | eq | 13.2 |
References
lists.fedoraproject.org/pipermail/package-announce/2015-December/173021.html
lists.fedoraproject.org/pipermail/package-announce/2015-December/173094.html
lists.opensuse.org/opensuse-updates/2015-11/msg00099.html
www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-ech-overflow.html
www.debian.org/security/2015/dsa-3409
www.securitytracker.com/id/1034308
security.gentoo.org/glsa/201606-01
Related
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
9.8 High
AI Score
Confidence
High
0.021 Low
EPSS
Percentile
89.4%