CVE-2014-6272
Multiple integer overflows in the evbuffer API in Libevent 1.4.x before 1.4.15, 2.0.x before 2.0.22, and 2.1.x before 2.1.5-beta allow context-dependent attackers to cause a denial of service or possibly have other unspecified impact via "insanely large…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.08%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Multiple integer overflows in the evbuffer API in Libevent 1.4.x before 1.4.15, 2.0.x before 2.0.22, and 2.1.x before 2.1.5-beta allow context-dependent attackers to cause a denial of service or possibly have other unspecified impact via "insanely large inputs" to the (1) evbuffer_add, (2) evbuffer_expand, or (3) bufferevent_write function, which triggers a heap-based buffer overflow or an infinite loop. NOTE: this identifier has been SPLIT per ADT3 due to different affected versions. See CVE-2015-6525 for the functions that are only affected in 2.0 and later.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 2.08% probability · 80th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-189
- Affected
- debian/debian linux · libevent project/libevent
- Source
- security@debian.org
References
- http://archives.seul.org/libevent/users/Jan-2015/msg00010.htmlVendor Advisory
- http://www.debian.org/security/2015/dsa-3119
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.366317
- https://puppet.com/security/cve/CVE-2014-6272
- http://archives.seul.org/libevent/users/Jan-2015/msg00010.htmlVendor Advisory
- http://www.debian.org/security/2015/dsa-3119
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.366317
- https://puppet.com/security/cve/CVE-2014-6272
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.