Strix
26.1K

CVE-2013-4852

UnknownEPSS 3.45%

Last modified

CVE-2013-4852 is a vulnerability of currently unknown severity. Integer overflow in PuTTY 0.62 and earlier, WinSCP before 5.1.6, and other products that use PuTTY allows remote SSH servers to cause a denial of service (crash) and possibly execute arbitrary code in certain applications that use PuTTY via a negative size value in an RSA key signature during the SSH handshake, which triggers a heap-based buffer overflow.. EPSS estimates a 3.45% chance of exploitation in the next 30 days.

Description

Integer overflow in PuTTY 0.62 and earlier, WinSCP before 5.1.6, and other products that use PuTTY allows remote SSH servers to cause a denial of service (crash) and possibly execute arbitrary code in certain applications that use PuTTY via a negative size value in an RSA key signature during the SSH handshake, which triggers a heap-based buffer overflow.

Metrics

EPSS Probability
3.45%

87.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
WinscpWinscp<= 5.1.5—
WinscpWinscp3.7.6—
WinscpWinscp3.8.2—
WinscpWinscp3.8_beta—
WinscpWinscp4.0.4—
WinscpWinscp4.0.5—
WinscpWinscp4.2.6—
WinscpWinscp4.2.7—
WinscpWinscp4.2.8—
WinscpWinscp4.2.9—
WinscpWinscp4.3.2—
WinscpWinscp4.3.4—
WinscpWinscp4.3.5—
WinscpWinscp4.3.6—
WinscpWinscp4.3.7—
WinscpWinscp4.3.8—
WinscpWinscp4.3.9—
WinscpWinscp4.4.0—
WinscpWinscp5.0Beta
WinscpWinscp5.0.1Beta
WinscpWinscp5.0.2Beta
WinscpWinscp5.0.3Beta
WinscpWinscp5.0.4Beta
WinscpWinscp5.0.5Beta
WinscpWinscp5.0.6Beta
WinscpWinscp5.0.7Beta
WinscpWinscp5.0.8Rc
WinscpWinscp5.0.9Rc
WinscpWinscp5.1—
WinscpWinscp5.1.1—
WinscpWinscp5.1.2—
WinscpWinscp5.1.3—
WinscpWinscp5.1.4—
DebianDebian Linux6.0—
DebianDebian Linux7.0—
DebianDebian Linux7.1—
OpensuseOpensuse12.3—
PuttyPutty0.45—
PuttyPutty0.46—
PuttyPutty0.47—
PuttyPutty0.48—
PuttyPutty0.49—
PuttyPutty0.50—
PuttyPutty0.51—
PuttyPutty0.52—
PuttyPutty0.53b—
PuttyPutty0.54—
PuttyPutty0.55—
PuttyPutty0.56—
PuttyPutty0.57—

Showing 50 of 57 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2013-4852?
Integer overflow in PuTTY 0.62 and earlier, WinSCP before 5.1.6, and other products that use PuTTY allows remote SSH servers to cause a denial of service (crash) and possibly execute arbitrary code in certain applications that use PuTTY via a negative size value in an RSA key signature during the SSH handshake, which triggers a heap-based buffer overflow.
How severe is CVE-2013-4852?
Severity scoring for CVE-2013-4852 is pending analysis. The EPSS model estimates a 3.45% probability of exploitation in the next 30 days.
How do I fix CVE-2013-4852?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-4852?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST