CVE-2021-23840
Published: 16 February 2021
Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x).
Low
CVSS 3 base score: 7.5
Status
| Package | Release | Status |
|---|---|---|
|
edk2 Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 21.04 (Hirsute Hippo) |
Released
(2020.11-4ubuntu0.1)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Released
(0~20191122.bd85bf54-2ubuntu3.3)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Needed
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Ignored
(out of standard support)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
nodejs Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(uses system openssl1.1)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(uses system openssl1.1)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(uses system openssl1.0)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(uses system openssl)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(uses system openssl)
|
|
|
openssl Launchpad, Ubuntu, Debian |
Upstream |
Released
(1.1.1j)
|
| Ubuntu 21.04 (Hirsute Hippo) |
Released
(1.1.1j-1ubuntu1)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Released
(1.1.1f-1ubuntu2.2)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(1.1.1-1ubuntu2.1~18.04.8)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(1.0.2g-1ubuntu4.19)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Needs triage
|
|
|
Patches: Upstream: https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6a51b9e1d0cf0bf8515f7201b68fb0a3482b3dc1 |
||
|
openssl1.0 Launchpad, Ubuntu, Debian |
Upstream |
Released
(1.0.2y)
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(1.0.2n-1ubuntu5.6)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
Notes
| Author | Note |
|---|---|
| mdeslaur | edk2 doesn't use EVP_CipherUpdate, EVP_EncryptUpdate, or EVP_DecryptUpdate, so it doesn't appear vulnerable to this issue edk2 upstream says EVP_DecryptUpdate is used by drivers |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23840
- https://www.openssl.org/news/secadv/20210216.txt
- https://ubuntu.com/security/notices/USN-4738-1
- https://ubuntu.com/security/notices/USN-5088-1
- NVD
- Launchpad
- Debian