Buffer overflow in Pidgin

CVE-2016-2377

A buffer overflow vulnerability exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent by the server could potentially result in an out-of-bounds write of one byte. A malicious server can send a negative content-length in response to a HTTP request triggering the vulnerability.

Vulnerability class: Buffer Overflow

EPSS: 0.027 (84.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

  • cret@cert.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
  • cret@cert.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
  • cret@cert.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
  • cret@cert.org (Technical Description, Third Party Advisory, x_refsource_MISC)
  • cret@cert.org (vendor-advisory, x_refsource_GENTOO)
  • cret@cert.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2016-2377?
CVE-2016-2377 is a high-severity vulnerability in Pidgin, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.1/10. Published 2017-01-06.
How severe is CVE-2016-2377?
High severity. CVSS v3 base score is 8.1 out of 10.