Debian Bug report logs -
#989997
olm: CVE-2021-34813
Reported by: Salvatore Bonaccorso <carnil@debian.org>
Date: Thu, 17 Jun 2021 13:48:01 UTC
Severity: important
Tags: security, upstream
Found in version olm/3.2.1~dfsg-7
Fixed in version olm/3.2.3~dfsg-1
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Bug#989997; Package src:olm.
(Thu, 17 Jun 2021 13:48:03 GMT) (full text, mbox, link).
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New Bug report received and forwarded. Copy sent to carnil@debian.org, team@security.debian.org, Matrix Packaging Team <pkg-matrix-maintainers@lists.alioth.debian.org>.
(Thu, 17 Jun 2021 13:48:03 GMT) (full text, mbox, link).
Message #5 received at submit@bugs.debian.org (full text, mbox, reply):
Source: olm
Version: 3.2.1~dfsg-7
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>
Control: fixed -1 3.2.3~dfsg-1
Hi,
The following vulnerability was published for olm.
CVE-2021-34813[0]:
| Matrix libolm before 3.2.3 allows a malicious Matrix homeserver to
| crash a client (while it is attempting to retrieve an Olm encrypted
| room key backup from the homeserver) because olm_pk_decrypt has a
| stack-based buffer overflow. Remote code execution might be possible
| for some nonstandard build configurations.
If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.
For further information see:
[0] https://security-tracker.debian.org/tracker/CVE-2021-34813
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34813
[1] https://gitlab.matrix.org/matrix-org/olm/-/commit/ccc0d122ee1b4d5e5ca4ec1432086be17d5f901b
[2] https://matrix.org/blog/2021/06/14/adventures-in-fuzzing-libolm
Please adjust the affected versions in the BTS as needed.
Regards,
Salvatore
Marked as fixed in versions olm/3.2.3~dfsg-1.
Request was from Salvatore Bonaccorso <carnil@debian.org>
to submit@bugs.debian.org.
(Thu, 17 Jun 2021 13:48:03 GMT) (full text, mbox, link).
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