CVE-2023-5176: Critical severity Mozilla Thunderbird vulnerability
Last updated 24 July 2024
Other sources
Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. 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
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/firefoxto a version that resolves this vulnerability.Fixed in 115.3 - Upgrade
Upgrade
Thunderbirdto a version that resolves this vulnerability.Fixed in 115.3 - Upgrade
Upgrade
Firefoxto a version that resolves this vulnerability.Fixed in 118 - Upgrade
Upgrade
Firefox ESRto a version that resolves this vulnerability.Fixed in 115.3 - Upgrade
Upgrade
debian/firefoxto a version that resolves this vulnerability.Fixed in 159.0-1 - Upgrade
Upgrade
debian/firefox-esrto a version that resolves this vulnerability.Fixed in 140.12.0esr-1~deb12u1Fixed in 153.6.0esr-1~deb12u2Fixed in 140.15.0esr-1~deb13u1Fixed in 153.6.0esr-1~deb13u1Fixed in 153.5.1esr-1Fixed in 153.6.0esr-1 - Upgrade
Upgrade
debian/thunderbirdto a version that resolves this vulnerability.Fixed in 1:140.12.0esr-1~deb12u1Fixed in 1:153.6.0esr-1~deb12u2Fixed in 1:140.12.0esr-1~deb13u1Fixed in 1:153.6.0esr-1~deb13u1Fixed in 1:153.5.0esr-1Fixed in 1:153.6.0esr-1
Event History
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2023-5176?
The severity of CVE-2023-5176 is high, with a severity value of 7.
Which software versions are affected by CVE-2023-5176?
Firefox ESR version up to 115.3, Firefox version up to 118, and Thunderbird version up to 115.3 are affected by CVE-2023-5176.
What are memory safety bugs?
Memory safety bugs are software vulnerabilities that occur when a program accesses memory in a way that is not intended, leading to potential security risks.
How can memory safety bugs be exploited?
Memory safety bugs can be exploited by attackers to manipulate the program's memory and potentially run arbitrary code.
Where can I find more information about CVE-2023-5176?
You can find more information about CVE-2023-5176 on the following references: [Bugzilla](https://bugzilla.mozilla.org/buglist.cgi?bug_id=1836353%2C1842674%2C1843824%2C1843962%2C1848890%2C1850180%2C1850983%2C1851195), [Mozilla Security Advisories - MFSA2023-42](https://www.mozilla.org/en-US/security/advisories/mfsa2023-42/), [Mozilla Security Advisories - MFSA2023-41](https://www.mozilla.org/en-US/security/advisories/mfsa2023-41/)