Bug 767334 (CVE-2021-23955, CVE-2021-23956, CVE-2021-23958, CVE-2021-23962, CVE-2021-23963, CVE-2021-23965, CVE-2021-26976, MFSA-2021-03, MFSA-2021-04) – <www-client/firefox{,-bin}-{78.7.0,85.0}: multiple vulnerabilities (MFSA2021-{03,04})

• Product: Gentoo Security
• Status: RESOLVED FIXED

[Description John Helmert III 2021-01-26 18:12:37 UTC]

ESR advisory: https://www.mozilla.org/en-US/security/advisories/mfsa2021-04/
85.0 advisory: https://www.mozilla.org/en-US/security/advisories/mfsa2021-03/

Highest severity vulnerability in ESR was CVE-2021-23953:

If a user clicked into a specifically crafted PDF, the PDF reader could be confused into leaking cross-origin information, when said information is served as chunked data.

[Comment 1 John Helmert III 2021-01-26 18:14:47 UTC]

Actually, at the bottom of the advisories there's the normal memory safety fixes which are presumed to be able to produce code execution exploits. CVE-2021-{23964,23965}.

[Comment 2 Sam James 2021-01-30 18:40:32 UTC]

x86 done

[Comment 3 Sam James 2021-01-31 21:48:15 UTC]

amd64 done

[Comment 4 Sam James 2021-01-31 21:49:19 UTC]

arm64 done

all arches done

[Comment 5 GLSAMaker/CVETool Bot 2021-02-01 01:41:50 UTC]

This issue was resolved and addressed in
 GLSA 202102-01 at https://security.gentoo.org/glsa/202102-01
by GLSA coordinator Aaron Bauman (b-man).

[Comment 6 Aaron Bauman (RETIRED) 2021-02-01 01:42:37 UTC]

re-opened for cleanup

[Comment 7 Larry the Git Cow 2021-02-01 05:55:11 UTC]

The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=311b1adcad283bca8c383ad3f807143df090c077

commit 311b1adcad283bca8c383ad3f807143df090c077
Author:     Joonas Niilola <[e-mail]>
AuthorDate: 2021-02-01 05:53:55 +0000
Commit:     Joonas Niilola <[e-mail]>
CommitDate: 2021-02-01 05:54:41 +0000

    www-client/firefox-bin: security cleanup
    
    Bug: https://bugs.gentoo.org/767334
    Signed-off-by: Joonas Niilola <[e-mail]>

 www-client/firefox-bin/Manifest                  |  97 ------
 www-client/firefox-bin/firefox-bin-78.6.1.ebuild | 411 -----------------------
 2 files changed, 508 deletions(-)

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=8b0ec6a4a863a7a31980028678f6ffd7d5e96557

commit 8b0ec6a4a863a7a31980028678f6ffd7d5e96557
Author:     Joonas Niilola <[e-mail]>
AuthorDate: 2021-02-01 05:53:26 +0000
Commit:     Joonas Niilola <[e-mail]>
CommitDate: 2021-02-01 05:54:40 +0000

    www-client/firefox: security cleanup
    
    Bug: https://bugs.gentoo.org/767334
    Signed-off-by: Joonas Niilola <[e-mail]>

 www-client/firefox/Manifest              |   96 ---
 www-client/firefox/firefox-78.6.1.ebuild | 1130 ------------------------------
 2 files changed, 1226 deletions(-)

[Comment 8 Sam James 2021-02-01 06:02:11 UTC]

Thanks! All done.

[Comment 9 Thomas Deutschmann (RETIRED) 2021-04-20 21:28:12 UTC]

Freeing CVE-2021-23961 for tracker creation.