Risk | High |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2019-11713 |
CWE-ID | CWE-416 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Firefox ESR Client/Desktop applications / Web browsers |
Vendor | Mozilla |
Security Bulletin
This security bulletin contains one high risk vulnerability.
EUVDB-ID: #VU33034
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-11713
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
A use-after-free vulnerability can occur in HTTP/2 when a cached HTTP/2 stream is closed while still in use, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.
MitigationInstall update from vendor's website.
Vulnerable software versionsFirefox ESR: 60.0 - 60.7.2
External linkshttp://lists.opensuse.org/opensuse-security-announce/2019-07/msg00055.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00058.html
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00073.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
http://bugzilla.mozilla.org/show_bug.cgi?id=1528481
http://lists.debian.org/debian-lts-announce/2019/08/msg00001.html
http://lists.debian.org/debian-lts-announce/2019/08/msg00002.html
http://security.gentoo.org/glsa/201908-12
http://security.gentoo.org/glsa/201908-20
http://www.mozilla.org/security/advisories/mfsa2019-21/
http://www.mozilla.org/security/advisories/mfsa2019-22/
http://www.mozilla.org/security/advisories/mfsa2019-23/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to visit a specially crafted website.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.