Buffer Overflow Affecting libopenssl1_1 package, versions <1.1.1d-11.27.1
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-SLES152-LIBOPENSSL11-2666360
- published 14 Apr 2022
- disclosed 24 Aug 2021
Introduced: 24 Aug 2021
CVE-2021-3711 Open this link in a new tabHow to fix?
Upgrade SLES:15.2
libopenssl1_1
to version 1.1.1d-11.27.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libopenssl1_1
package and not the libopenssl1_1
package as distributed by SLES
.
See How to fix?
for SLES:15.2
relevant fixed versions and status.
In order to decrypt SM2 encrypted data an application is expected to call the API function EVP_PKEY_decrypt(). Typically an application will call this function twice. The first time, on entry, the "out" parameter can be NULL and, on exit, the "outlen" parameter is populated with the buffer size required to hold the decrypted plaintext. The application can then allocate a sufficiently sized buffer and call EVP_PKEY_decrypt() again, but this time passing a non-NULL value for the "out" parameter. A bug in the implementation of the SM2 decryption code means that the calculation of the buffer size required to hold the plaintext returned by the first call to EVP_PKEY_decrypt() can be smaller than the actual size required by the second call. This can lead to a buffer overflow when EVP_PKEY_decrypt() is called by the application a second time with a buffer that is too small. A malicious attacker who is able present SM2 content for decryption to an application could cause attacker chosen data to overflow the buffer by up to a maximum of 62 bytes altering the contents of other data held after the buffer, possibly changing application behaviour or causing the application to crash. The location of the buffer is application dependent but is typically heap allocated. Fixed in OpenSSL 1.1.1l (Affected 1.1.1-1.1.1k).
References
- https://www.suse.com/security/cve/CVE-2021-3711.html
- https://bugzilla.suse.com/1189520
- https://bugzilla.suse.com/1190129
- https://bugzilla.suse.com/1192100
- https://bugzilla.suse.com/1205663
- https://bugzilla.suse.com/1225628
- http://www.openwall.com/lists/oss-security/2021/08/26/2
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=59f5e75f3bced8fc0e130d72a3f582cf7b480b46
- https://lists.apache.org/thread.html/r18995de860f0e63635f3008fd2a6aca82394249476d21691e7c59c9e@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/rad5d9f83f0d11fb3f8bb148d179b8a9ad7c6a17f18d70e5805a713d1@%3Cdev.tomcat.apache.org%3E
- https://security.gentoo.org/glsa/202209-02
- https://security.gentoo.org/glsa/202210-02
- https://security.netapp.com/advisory/ntap-20210827-0010/
- https://security.netapp.com/advisory/ntap-20211022-0003/
- https://www.debian.org/security/2021/dsa-4963
- https://www.openssl.org/news/secadv/20210824.txt
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://www.tenable.com/security/tns-2021-16
- https://www.tenable.com/security/tns-2022-02
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=59f5e75f3bced8fc0e130d72a3f582cf7b480b46
- https://lists.apache.org/thread.html/r18995de860f0e63635f3008fd2a6aca82394249476d21691e7c59c9e%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/rad5d9f83f0d11fb3f8bb148d179b8a9ad7c6a17f18d70e5805a713d1%40%3Cdev.tomcat.apache.org%3E
- https://security.netapp.com/advisory/ntap-20240621-0006/