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).
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-2563-1 | openssl security update |
Debian DLA |
DLA-2565-1 | openssl1.0 security update |
Debian DSA |
DSA-4855-1 | openssl security update |
EUVD |
EUVD-2021-1843 | 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). |
Github GHSA |
GHSA-qgm6-9472-pwq7 | Integer Overflow in openssl-src |
Ubuntu USN |
USN-4738-1 | OpenSSL vulnerabilities |
Ubuntu USN |
USN-5088-1 | EDK II vulnerabilities |
Ubuntu USN |
USN-7018-1 | OpenSSL vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Sun, 08 Sep 2024 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:acm:2.2::el7 |
Mon, 19 Aug 2024 22:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:acm:2.2::el8 |
Status: PUBLISHED
Assigner: openssl
Published:
Updated: 2024-09-17T02:16:35.124Z
Reserved: 2021-01-12T00:00:00
Link: CVE-2021-23840
No data.
Status : Modified
Published: 2021-02-16T17:15:13.300
Modified: 2024-11-21T05:51:55.210
Link: CVE-2021-23840
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA
EUVD
Github GHSA
Ubuntu USN