Published: 15/03/2017 Updated: 31/01/2022

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Stack-based buffer overflow in the evutil_parse_sockaddr_port function in evutil.c in libevent prior to 2.1.6-beta allows malicious users to cause a denial of service (segmentation fault) via vectors involving a long string in brackets in the ip_as_string argument.

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debian debian linux 8.0
libevent project libevent
mozilla firefox
mozilla firefox esr
mozilla firefox esr 52.0
mozilla thunderbird

Debian Bug report logs - #854092 Multiple security issues in libevent Package: libevent; Maintainer for libevent is Anibal Monsalve Salazar <anibal@debianorg>; Reported by: Guido Günther <agx@sigxcpuorg> Date: Fri, 3 Feb 2017 23:45:02 UTC Severity: important Tags: security Found in version 2021-stable-2 Fixed ...

Synopsis Important: thunderbird security update Type/Severity Security Advisory: Important Topic An update for thunderbird is now available for Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7Red Hat Product Security has rated this update as having a security impact of Important A Common Vulnerab ...

Synopsis Critical: firefox security update Type/Severity Security Advisory: Critical Topic An update for firefox is now available for Red Hat Enterprise Linux 7Red Hat Product Security has rated this update as having a security impact of Critical A Common Vulnerability Scoring System (CVSS) base score, wh ...

Synopsis Critical: firefox security update Type/Severity Security Advisory: Critical Topic An update for firefox is now available for Red Hat Enterprise Linux 6Red Hat Product Security has rated this update as having a security impact of Critical A Common Vulnerability Scoring System (CVSS) base score, wh ...

Several security issues were fixed in libevent ...

Several security issues were fixed in Thunderbird ...

Several vulnerabilities were discovered in libevent, an asynchronous event notification library They would lead to Denial Of Service via application crash, or remote code execution For the stable distribution (jessie), these problems have been fixed in version 2021-stable-2+deb8u1 For the unstable distribution (sid), these problems have been f ...

A vulnerability was found in libevent with the parsing of IPv6 addresses If an attacker could cause an application using libevent to parse a malformed address in IPv6 notation of more than 2GiB in length, a stack overflow would occur leading to a crash ...

Mozilla Foundation Security Advisory 2017-11 Security vulnerabilities fixed in Firefox ESR 459 Announced April 19, 2017 Impact critical Products Firefox ESR Fixed in Firefox ESR 459 ...

Mozilla Foundation Security Advisory 2017-10 Security vulnerabilities fixed in Firefox 53 Announced April 19, 2017 Impact critical Products Firefox Fixed in Firefox 53 ...

Mozilla Foundation Security Advisory 2017-13 Security vulnerabilities fixed in Thunderbird 521 Announced April 30, 2017 Impact critical Products Thunderbird Fixed in Thunderbird 521 ...

Mozilla Foundation Security Advisory 2017-12 Security vulnerabilities fixed in Firefox ESR 521 Announced April 19, 2017 Impact critical Products Firefox ESR Fixed in Firefox ESR 521 ...

CWE-787 https://github.com/libevent/libevent/issues/318 https://github.com/libevent/libevent/commit/329acc18a0768c21ba22522f01a5c7f46cacc4d5 https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLog http://www.openwall.com/lists/oss-security/2017/02/02/7 http://www.openwall.com/lists/oss-security/2017/01/31/17 http://www.debian.org/security/2017/dsa-3789 http://www.securityfocus.com/bid/96014 https://security.gentoo.org/glsa/201705-01 http://www.securitytracker.com/id/1038320 https://access.redhat.com/errata/RHSA-2017:1201 https://access.redhat.com/errata/RHSA-2017:1106 https://access.redhat.com/errata/RHSA-2017:1104 https://www.mozilla.org/security/advisories/mfsa2017-13/https://www.mozilla.org/security/advisories/mfsa2017-12/https://www.mozilla.org/security/advisories/mfsa2017-11/https://www.mozilla.org/security/advisories/mfsa2017-10/https://bugzilla.mozilla.org/show_bug.cgi?id=1343453 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854092 https://nvd.nist.gov https://usn.ubuntu.com/3228-1/

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