VulnerabilityModified
CVE-2015-5309
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…
MEDIUM 4.3EPSS 3.47%
Does this matter?
Lower severity and a low EPSS score (3.47%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 2.0
- 4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
- EPSS
- 3.47% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-189
- Affected
- opensuse/leap · opensuse/opensuse · simon tatham/putty
- Source
- secalert@redhat.com
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173021.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173094.html
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00099.html
- http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-ech-overflow.htmlVendor Advisory
- http://www.debian.org/security/2015/dsa-3409
- http://www.securitytracker.com/id/1034308
- https://security.gentoo.org/glsa/201606-01
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173021.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173094.html
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00099.html
- http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-ech-overflow.htmlVendor Advisory
- http://www.debian.org/security/2015/dsa-3409
- http://www.securitytracker.com/id/1034308
- https://security.gentoo.org/glsa/201606-01
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.