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- Glitches to mozilla thunderbird update pdf#
- Glitches to mozilla thunderbird update update#
- Glitches to mozilla thunderbird update software#
While IBM X-Force said that this flaw has a CVSS 3.0 base score of 8.8 out of 10 (which would make it high-severity), Mozilla in its alert said that the impact was “moderate.”
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Glitches to mozilla thunderbird update pdf#
“This could have caused memory corruption and a potentially exploitable crash.”Īnother flaw ( CVE-2020-6799) addressed by Firefox 73 stems from an error when opening PDF links from other applications (when Firefox is configured as a default PDF reader). According to Mozilla, the flaw allows a remote attacker to execute arbitrary code on the system by persuading a victim to visit a specially-crafted site and then executing arbitrary code or triggering a DoS. “A content process could have modified shared memory relating to crash reporting information, crash itself, and cause an out-of-bound write,” according to Mozilla’s alert. It stems from a missing bounds check (a method of detecting whether a variable is within some bounds before it is used) on the shared memory read process, within the parent process of the browser. A remote attacker could exploit this flaw by persuading a victim to visit a specially-crafted webpage, and using “unknown attack vectors” to then execute arbitrary code on the vulnerable system or cause a DoS. “Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code,” Mozilla said.īoth memory safety bugs were reported by Mozilla developers and community members Raul Gurzau, Tyson Smith, Bob Clary, Liz Henry, and Christian Holler.Īnother high-severity flaw ( CVE-2020-6796) was fixed in Firefox 73, and also has a score of 8.8 out of 10 on the CVSS v3 scale, making it high severity. According to the IBM X-Force team’s analysis, a remote attacker could exploit either one of the vulnerabilities by persuading a victim to visit a specially-crafted webpage, and then use an “unknown attack vectors” to execute arbitrary code on the vulnerable system or cause a denial of service (DoS).
Glitches to mozilla thunderbird update software#
Memory safety mechanisms protects systems from various software bugs tied to memory access, such as buffer overflows and other issues. The other vulnerability ( CVE-2020-6801) was fixed with the release of Firefox 73, released on Tuesday.
Glitches to mozilla thunderbird update update#
One of the vulnerabilities, tracked as CVE-2020-6800, was fixed in a previous release of Firefox 72 and the current Firefox ESR 68.5 update on Tuesday. The Mozilla security bulletin said both high-severity flaws are tied to “memory safety bugs within the browser engine”. Two of the high-severity bugs both allow a remote attacker to execute code on targeted devices by enticing users to visit a specially-crafted web site and exploiting browser memory corruption flaws.
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Both releases tackle six vulnerabilities. The Firefox ESR browser is its Extended Support Release version of Firefox, designed for mass deployments. The patched version of Mozilla’s browser, launched on Tuesday, is Firefox 73 and Firefox ESR 68.5. Mozilla has launched the latest version of its Firefox browser, which knocks out high-severity security flaws that leave systems open to attack by a remote adversary.