Advisories ยป MGASA-2020-0274

Updated firefox packages fix security vulnerability

Publication date: 04 Jul 2020
Modification date: 04 Jul 2020
Type: security
Affected Mageia releases : 7
CVE: CVE-2020-12417 , CVE-2020-12418 , CVE-2020-12419 , CVE-2020-12420 , CVE-2020-12421


Updated nss and firefox packages fix security vulnerabilities:

NSS has shown timing differences when performing DSA signatures, which
was exploitable and could eventually leak private keys (CVE-2020-12399).

Side channel vulnerabilities during RSA key generation in NSS

When browsing a malicious page, a race condition in our 
SharedWorkerService could occur and lead to a potentially exploitable
crash due to a use-after-free (CVE-2020-12405).

Mozilla developer Iain Ireland discovered a missing type check during
unboxed objects removal, resulting in a crash due to type confusion with
NativeTypes. We presume that with enough effort that it could be exploited
to run arbitrary code (CVE-2020-12406).

Mozilla developers Tom Tung and Karl Tomlinson reported memory safety bugs
present in Firefox ESR 68.8. 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 (CVE-2020-12410).

Manipulating individual parts of a URL object could have caused an
out-of-bounds read, leaking process memory to malicious JavaScript

When processing callbacks that occurred during window flushing in the parent
process, the associated window may die; causing a use-after-free in
nsGlobalWindowInner. This could have led to memory corruption and a
potentially exploitable crash (CVE-2020-12419).

When trying to connect to a STUN server, a race condition could have caused a
use-after-free of a pointer, leading to memory corruption and a potentially
exploitable crash (CVE-2020-12420).

When performing add-on updates, certificate chains terminating in
non-built-in-roots were rejected (even if they were legitimately added by an
administrator.) This could have caused add-ons to become out-of-date silently
without notification to the user (CVE-2020-12421).