firefox-115.9.0esr

[ken@…]

Now available, Release Announcement due tomorrow.

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Release Notes ​https://www.mozilla.org/en-US/security/advisories/mfsa2024-13/

CVE-2024-0743: Crash in NSS TLS method High

An unchecked return value in TLS handshake code could have caused a potentially exploitable crash.

CVE-2024-2608 Integer overflow could have led to out of bounds write High

AppendEncodedAttributeValue(), ExtraSpaceNeededForAttrEncoding() and AppendEncodedCharacters() could have experienced integer overflows, causing underallocation of an output buffer leading to an out of bounds write.

CVE-2024-2616 Improve handling of out-of-memory conditions in ICU. High

To harden ICU against exploitation, the behavior for out-of-memory conditions was changed to crash instead of attempt to continue.

CVE-2023-5388: NSS susceptible to timing attack against RSA decryption Medium

NSS was susceptible to a timing side-channel attack when performing RSA decryption. This attack could potentially allow an attacker to recover the private data.

CVE-2024-2610: Improper handling of html and body tags enabled CSP nonce leakage Medium

Using a markup injection an attacker could have stolen nonce values. This could have been used to bypass strict content security policies.

CVE-2024-2611: Clickjacking vulnerability could have led to a user accidentally granting permissions Medium

A missing delay on when pointer lock was used could have allowed a malicious page to trick a user into granting permissions.

CVE-2024-2612: Self referencing object could have potentially led to a use-afer-free Medium

If an attacker could find a way to trigger a particular code path in SafeRefPtr, it could have triggered a crash or potentially be leveraged to achieve code execution.

CVE-2024-2614: Memory safety bugs fixed in Firefox 124, Firefox ESR 115.9 Thunderbird 115.9 High

Memory safety bugs present in Firefox 123, Firefox ESR 115.8, and Thunderbird 115.8. 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.

Also CVE-2024-2605 for Windows, CVE-2024-2607 for Arm V7-A

For CVE-2024-2616 the link is to ​https://bugzilla.mozilla.org/show_bug.cgi?id=1846197 which is of course not yet public. Given that mozilla prefers to use the bundled icu4x [​​https://github.com/unicode-org/icu4x] I am unsure if their hardening is in the mozilla code which calls icu, in icu4x itself, or in only their shipped icu4x. Interesting that they rate it as High. Awaiting analysis at NVD, no details except the advisories and the bug link.

For CVE-2023-5388 the position at NVD is similar (links are for FF and TB). I assume that using current system NSS fixes this (we are on 3.98, FF-115.9.0 updated shipped nss to 3.90.2.

[Xi Ruoyao]

Replying to ken@…:

For CVE-2024-2616 the link is to ​https://bugzilla.mozilla.org/show_bug.cgi?id=1846197 which is of course not yet public. Given that mozilla prefers to use the bundled icu4x [​​https://github.com/unicode-org/icu4x] I am unsure if their hardening is in the mozilla code which calls icu, in icu4x itself, or in only their shipped icu4x. Interesting that they rate it as High. Awaiting analysis at NVD, no details except the advisories and the bug link.

The relevant change seems ​https://hg.mozilla.org/releases/mozilla-esr115/rev/ed4feddaa2024cc0d9af4de7aa16cde901b2702b. It changes the mozilla code allocating the memory for ICU.

For CVE-2023-5388 the position at NVD is similar (links are for FF and TB). I assume that using current system NSS fixes this (we are on 3.98, FF-115.9.0 updated shipped nss to 3.90.2.

[ken@…]

Replying to Xi Ruoyao:

Replying to ken@…:

For CVE-2024-2616 the link is to ​https://bugzilla.mozilla.org/show_bug.cgi?id=1846197 which is of course not yet public. Given that mozilla prefers to use the bundled icu4x [​​https://github.com/unicode-org/icu4x] I am unsure if their hardening is in the mozilla code which calls icu, in icu4x itself, or in only their shipped icu4x. Interesting that they rate it as High. Awaiting analysis at NVD, no details except the advisories and the bug link.

The relevant change seems ​https://hg.mozilla.org/releases/mozilla-esr115/rev/ed4feddaa2024cc0d9af4de7aa16cde901b2702b. It changes the mozilla code allocating the memory for ICU.

Many thanks!

[ken@…]

Book updated in sha:r12.1-174-g8ee74231a68c

[ken@…]

Security Advisory SA-12.1-008 created.