CVE-2021-44538
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-44538
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44538.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-44538
- Related
- Published
- 2021-12-14T14:15:09Z
- Modified
- 2024-09-18T03:17:47.360624Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
The olmsessiondescribe function in Matrix libolm before 3.2.7 is vulnerable to a buffer overflow. The Olm session object represents a cryptographic channel between two parties. Therefore, its state is partially controllable by the remote party of the channel. Attackers can construct a crafted sequence of messages to manipulate the state of the receiver's session in such a way that, for some buffer sizes, a buffer overflow happens on a call to olmsessiondescribe. Furthermore, safe buffer sizes were undocumented. The overflow content is partially controllable by the attacker and limited to ASCII spaces and digits. The known affected products are Element Web And SchildiChat Web.
- References
-
- https://matrix.org/blog/2021/12/13/disclosure-buffer-overflow-in-libolm-and-matrix-js-sdk
- https://www.debian.org/security/2022/dsa-5034
- https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
- https://gitlab.matrix.org/matrix-org/olm/-/tags
- https://security-tracker.debian.org/tracker/CVE-2021-44538
Affected packages
Debian:11 / olm
Package
- Name
- olm
- Purl
- pkg:deb/debian/olm?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected
Affected versions
3.*
3.2.1~dfsg-7
3.2.3~dfsg-1
3.2.3~dfsg-2
3.2.3~dfsg-3
3.2.4~dfsg-1
3.2.6~dfsg-1
3.2.6~dfsg-2
3.2.7~dfsg-1
3.2.7~dfsg-2
3.2.8~dfsg-1
3.2.10~dfsg-1
3.2.10~dfsg-2
3.2.10~dfsg-3
3.2.10~dfsg-4
3.2.10~dfsg-5
3.2.10~dfsg-6
3.2.11~dfsg-1~bpo11+1
3.2.11~dfsg-1
3.2.12~dfsg-1
3.2.13~dfsg-1
3.2.15~dfsg-1
3.2.16+dfsg-1
3.2.16+dfsg-2
Debian:12 / olm
Package
- Name
- olm
- Purl
- pkg:deb/debian/olm?arch=source
Debian:13 / olm
Package
- Name
- olm
- Purl
- pkg:deb/debian/olm?arch=source
Debian:11 / thunderbird
Package
- Name
- thunderbird
- Purl
- pkg:deb/debian/thunderbird?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed1:91.4.1-1~deb11u1
Affected versions
1:78.*
1:78.12.0-1
1:78.13.0-1~deb9u1
1:78.13.0-1~deb10u1
1:78.13.0-1~deb11u1
1:78.13.0-1
1:78.14.0-1~deb9u1
1:78.14.0-1~deb10u1
1:78.14.0-1~deb11u1
1:78.14.0-1
1:84.*
1:84.0~b3-1
1:85.*
1:85.0~b3-1
1:86.*
1:86.0~b3-1
1:88.*
1:88.0~b2-1
1:89.*
1:89.0~b2-1
1:90.*
1:90.0~b2-1
1:91.*
1:91.0~b1-1
1:91.0~b3-1
1:91.0~b5-1
1:91.0-1
1:91.0.2-1
1:91.1.0-1
1:91.1.1-1
1:91.2.0-1
1:91.2.1-1
1:91.3.0-1
1:91.3.2-1
1:91.4.0-1
1:91.4.1-1~deb9u1
1:91.4.1-1~deb10u1
Debian:12 / thunderbird
Package
- Name
- thunderbird
- Purl
- pkg:deb/debian/thunderbird?arch=source
Debian:13 / thunderbird
Package
- Name
- thunderbird
- Purl
- pkg:deb/debian/thunderbird?arch=source
Git / github.com/ajbura/cinny
Affected ranges
- Type
- GIT
- Repo
- https://github.com/ajbura/cinny
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Type
- GIT
- Repo
- https://github.com/matrix-org/matrix-js-sdk
- Events
- Type
- GIT
- Repo
- https://github.com/schildichat/schildichat-desktop
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Type
- GIT
- Repo
- https://github.com/vector-im/element-desktop
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Type
- GIT
- Repo
- https://github.com/vector-im/element-web
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Type
- GIT
- Repo
- https://gitlab.matrix.org/matrix-org/olm
- Events
Affected versions
3.*
3.1.4
3.1.5
3.2.0
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
v0.*
v0.1.2
v0.10.0
v0.10.0-rc.2
v0.10.1
v0.10.2
v0.11.0
v0.11.0-rc.1
v0.11.0-rc.2
v0.11.1
v0.11.2
v0.11.2-rc.1
v0.11.2-rc.2
v0.11.3
v0.11.4
v0.12.0-rc.1
v0.12.1
v0.12.1-rc.1
v0.12.2
v0.12.3
v0.12.3-rc.1
v0.12.3-rc.2
v0.12.3-rc.3
v0.12.4
v0.12.4-rc.1
v0.12.5
v0.12.6
v0.12.7
v0.12.7-rc.1
v0.12.7-rc.2
v0.12.7-rc.3
v0.13.0
v0.13.0-rc.1
v0.13.0-rc.2
v0.13.0-rc.3
v0.13.1
v0.13.2
v0.13.3
v0.13.4
v0.13.5
v0.14.0
v0.14.0-rc.1
v0.14.0-rc.2
v0.14.0-rc.3
v0.14.0-rc.4
v0.14.0-rc.5
v0.14.0-rc.6
v0.14.1
v0.14.2
v0.14.2-rc.1
v0.14.2-rc.2
v0.14.2-rc.3
v0.14.3-rc.1
v0.15.0
v0.15.0-rc.1
v0.15.0-rc.2
v0.15.0-rc.3
v0.15.0-rc.4
v0.15.0-rc.5
v0.15.0-rc.6
v0.15.1
v0.15.2
v0.15.3
v0.15.4
v0.15.4-rc.1
v0.15.5
v0.15.5-rc.1
v0.15.6
v0.15.6-rc.1
v0.15.6-rc.2
v0.15.7
v0.15.7-rc.1
v0.15.7-rc.2
v0.16.0
v0.16.0-rc.1
v0.16.0-rc.2
v0.16.1
v0.16.1-rc.1
v0.16.2
v0.16.3
v0.16.3-rc.1
v0.16.3-rc.2
v0.16.4
v0.16.4-rc.1
v0.16.5
v0.16.5-rc.1
v0.16.6
v0.17.0
v0.17.0-rc.1
v0.17.1
v0.17.2
v0.17.3
v0.17.3-rc.1
v0.17.4
v0.17.5
v0.17.6
v0.17.6-rc.1
v0.17.6-rc.2
v0.17.7
v0.17.8
v0.17.8-rc.1
v0.17.9
v0.17.9-rc.1
v0.3.0
v0.4.0
v0.4.1
v0.5.0
v0.6.0
v0.6.1
v0.7.0
v0.7.1
v0.7.2
v0.7.3
v0.7.4
v0.7.4-r1
v0.7.5
v0.7.5-r1
v0.7.5-r2
v0.7.5-r3
v0.8.0
v0.8.1
v0.8.2
v0.8.3
v0.9.10
v0.9.10-rc.1
v0.9.2
v0.9.3
v0.9.4
v0.9.5
v0.9.6
v0.9.6-rc.1
v0.9.7
v0.9.7-rc.1
v0.9.7-rc.2
v0.9.7-rc.3
v0.9.8
v0.9.8-rc.1
v0.9.8-rc.2
v0.9.8-rc.3
v0.9.9
v0.9.9-rc.1
v0.9.9-rc.2
v1.*
v1.0.0
v1.0.0-rc.1
v1.0.0-rc.2
v1.0.1
v1.0.2
v1.0.2-rc.1
v1.0.2-rc.2
v1.0.2-rc.3
v1.0.3
v1.0.4
v1.0.4-rc.1
v1.0.5
v1.0.6
v1.0.6-rc.1
v1.0.7
v1.0.8
v1.1.0
v1.1.0-rc.1
v1.1.1
v1.1.2
v1.2.0
v1.2.0-rc.1
v1.2.1
v1.2.2
v1.2.2-rc.1
v1.2.2-rc.2
v1.2.3
v1.2.3-rc.1
v1.2.4
v1.3.0
v1.3.0-rc.1
v1.3.0-rc.2
v1.3.0-rc.3
v1.3.1
v1.3.1-rc.1
v1.3.2
v1.3.3
v1.3.4
v1.3.4-rc.1
v1.3.5
v1.3.5-rc.1
v1.3.5-rc.2
v1.3.5-rc.3
v1.3.6
v1.4.0
v1.4.0-rc.1
v1.4.0-rc.2
v1.4.1
v1.4.2
v1.4.2-rc.1
v1.5.0
v1.5.0-rc.1
v1.5.1
v1.5.1-rc.1
v1.5.1-rc.2
v1.5.10
v1.5.11
v1.5.11-rc.1
v1.5.12
v1.5.13
v1.5.13-rc.1
v1.5.14
v1.5.14-rc.1
v1.5.15
v1.5.16-rc.1
v1.5.2
v1.5.3
v1.5.4
v1.5.4-rc.1
v1.5.4-rc.2
v1.5.5
v1.5.6
v1.5.6-rc.1
v1.5.7
v1.5.7-rc.1
v1.5.7-rc.2
v1.5.8
v1.5.8-rc.1
v1.5.8-rc.2
v1.5.9
v1.5.9-rc.1
v1.6.0
v1.6.0-rc.1
v1.6.0-rc.2
v1.6.0-rc.3
v1.6.0-rc.4
v1.6.0-rc.5
v1.6.0-rc.6
v1.6.1
v1.6.1-rc.1
v1.6.2
v1.6.3
v1.6.3-rc.1
v1.6.4
v1.6.5
v1.6.6
v1.6.6-rc.1
v1.6.7
v1.6.8
v1.6.8-rc.1
v1.7.0
v1.7.1
v1.7.10
v1.7.11
v1.7.11-rc.1
v1.7.12
v1.7.13
v1.7.13-rc.1
v1.7.14
v1.7.14-rc.1
v1.7.15
v1.7.15-rc.1
v1.7.16
v1.7.16-rc.1
v1.7.17
v1.7.17-rc.1
v1.7.17-sc1
v1.7.18
v1.7.19
v1.7.19-rc.1
v1.7.2
v1.7.20
v1.7.20-sc1
v1.7.21
v1.7.21-rc.1
v1.7.22
v1.7.22-rc.1
v1.7.22-sc1
v1.7.23
v1.7.23-rc.1
v1.7.24
v1.7.24-rc.1
v1.7.24-sc1
v1.7.25
v1.7.25-rc.1
v1.7.26
v1.7.26-rc.1
v1.7.27
v1.7.27-rc.1
v1.7.28
v1.7.28-rc.1
v1.7.29
v1.7.29-rc.1
v1.7.29-sc1
v1.7.3
v1.7.3-rc.1
v1.7.30
v1.7.30-rc.1
v1.7.31
v1.7.31-rc.1
v1.7.32
v1.7.32-rc.1
v1.7.32-sc1
v1.7.33
v1.7.33-rc.1
v1.7.34
v1.7.34-rc.1
v1.7.4
v1.7.4-rc.1
v1.7.5
v1.7.5-rc.1
v1.7.6
v1.7.6-rc.1
v1.7.7
v1.7.8
v1.7.8-rc.1
v1.7.9
v1.7.9-rc.1
v1.8.0
v1.8.0-rc.1
v1.8.1
v1.8.2
v1.8.2-rc.1
v1.8.2-rc.2
v1.8.2-rc.3
v1.8.3-rc.1
v1.8.3-rc.2
v1.8.4
v1.8.4-sc1
v1.8.5
v1.8.5-sc1
v1.8.6-rc.1
v1.8.6-rc.2
v1.9.0
v1.9.0-sc.1
v1.9.1
v1.9.1-rc.1
v1.9.1-rc.2
v1.9.2
v1.9.3
v1.9.3-rc.1
v1.9.3-rc.2
v1.9.3-rc.3
v1.9.4
v1.9.4-rc.1
v1.9.5
v1.9.5-rc.1
v1.9.5-sc.2
v1.9.6
v1.9.6-rc.2
v10.*
v10.0.0
v10.0.0-rc.1
v10.1.0
v10.1.0-rc.1
v11.*
v11.0.0
v11.0.0-rc.1
v11.1.0
v11.1.0-rc.1
v11.2.0
v11.2.0-rc.1
v12.*
v12.0.0
v12.0.0-rc.1
v12.0.1
v12.0.1-rc.1
v12.1.0
v12.1.0-rc.1
v12.2.0
v12.2.0-rc.1
v12.3.0
v12.3.0-rc.1
v12.3.0-rc.2
v12.3.1
v12.4.0
v12.4.0-rc.1
v12.4.1
v12.5.0
v12.5.0-rc.1
v13.*
v13.0.0
v13.0.0-rc.1
v14.*
v14.0.0
v14.0.0-rc.1
v14.0.0-rc.2
v14.0.1
v15.*
v15.0.0
v15.0.0-rc.1
v15.1.0
v15.1.0-rc.1
v15.1.1
v15.1.1-rc.1
v15.2.0
v15.2.0-rc.1
v2.*
v2.4.2
v2.4.3
v2.4.3-rc.1
v2.4.4
v2.4.4-rc.1
v2.4.5
v2.4.6
v2.4.6-rc.1
v3.*
v3.0.0
v3.0.0-rc.1
v4.*
v4.0.0
v4.0.0-rc.1
v5.*
v5.0.0
v5.0.0-rc.1
v5.0.1
v5.1.0
v5.1.0-rc.1
v5.1.1
v5.1.1-rc.1
v5.2.0
v5.2.0-rc.1
v5.3.0-rc.1
v5.3.1-rc.1
v5.3.1-rc.2
v5.3.1-rc.3
v5.3.1-rc.4
v6.*
v6.0.0
v6.0.0-rc.1
v6.0.0-rc.2
v6.1.0
v6.1.0-rc.1
v6.2.0
v6.2.0-rc.1
v6.2.1
v6.2.2
v7.*
v7.0.0
v7.0.0-rc.1
v7.1.0
v7.1.0-rc.1
v8.*
v8.0.0
v8.0.1
v8.0.1-rc.1
v8.1.0
v8.1.0-rc.1
v8.2.0
v8.2.0-rc.1
v8.3.0
v8.3.0-rc.1
v8.4.0
v8.4.0-rc.1
v8.4.1
v8.5.0
v8.5.0-rc.1
v9.*
v9.0.0
v9.0.0-rc.1
v9.0.1
v9.1.0
v9.1.0-rc.1
v9.10.0
v9.10.0-rc.1
v9.11.0
v9.11.0-rc.1
v9.2.0
v9.2.0-rc.1
v9.3.0
v9.3.0-rc.1
v9.4.0
v9.4.0-rc.1
v9.4.0-rc.2
v9.4.1
v9.5.0
v9.5.0-rc.1
v9.5.1
v9.6.0
v9.6.0-rc.1
v9.7.0
v9.7.0-rc.1
v9.8.0
v9.8.0-rc.1
v9.9.0
v9.9.0-rc.1