Mozilla Foundation Security Advisory 2020-10
Security Vulnerabilities fixed in Thunderbird 68.6
- Announced
- March 10, 2020
- Impact
- high
- Products
- Thunderbird
- Fixed in
-
- Thunderbird 68.6
In general, these flaws cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but are potentially risks in browser or browser-like contexts.
#CVE-2020-6805: Use-after-free when removing data about origins
- Reporter
- Brian Carpenter
- Impact
- high
Description
When removing data about an origin whose tab was recently closed, a use-after-free could occur in the Quota manager, resulting in a potentially exploitable crash.
References
#CVE-2020-6806: BodyStream::OnInputStreamReady was missing protections against state confusion
- Reporter
- Sergei Glazunov of Google Project Zero
- Impact
- high
Description
By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash.
References
#CVE-2020-6807: Use-after-free in cubeb during stream destruction
- Reporter
- C.M.Chang
- Impact
- high
Description
When a device was changed while a stream was about to be destroyed, the stream-reinit task may have been executed after the stream was destroyed, causing a use-after-free and a potentially exploitable crash.
References
#CVE-2020-6811: Devtools' 'Copy as cURL' feature did not fully escape website-controlled data, potentially leading to command injection
- Reporter
- Ophir LOJKINE
- Impact
- moderate
Description
The 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP method of a request, which can be controlled by the website. If a user used the 'Copy as Curl' feature and pasted the command into a terminal, it could have resulted in command injection and arbitrary command execution.
References
#CVE-2019-20503: Out of bounds reads in sctp_load_addresses_from_init
- Reporter
- Natalie Silvanovich of Google Project Zero
- Impact
- moderate
Description
The inputs to sctp_load_addresses_from_init are verified by sctp_arethere_unrecognized_parameters; however, the two functions handled parameter bounds differently, resulting in out of bounds reads when parameters are partially outside a chunk.
References
#CVE-2020-6812: The names of AirPods with personally identifiable information were exposed to websites with camera or microphone permission
- Reporter
- Jan-Ivar Bruaroey
- Impact
- moderate
Description
The first time AirPods are connected to an iPhone, they become named after the user's name by default (e.g. Jane Doe's AirPods.) Websites with camera or microphone permission are able to enumerate device names, disclosing the user's name. To resolve this issue, Firefox added a special case that renames devices containing the substring 'AirPods' to simply 'AirPods'.
References
#CVE-2020-6814: Memory safety bugs fixed in Thunderbird 68.6
- Reporter
- Mozilla developers
- Impact
- high
Description
Mozilla developers Byron Campen, Jason Kratzer, and Christian Holler reported memory safety bugs present in Thunderbird 68.5. 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.