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CVE-2010-2939

Publication date 17 August 2010

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Double free vulnerability in the ssl3_get_key_exchange function in the OpenSSL client (ssl/s3_clnt.c) in OpenSSL 1.0.0a, 0.9.8, 0.9.7, and possibly other versions, when using ECDH, allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted private key with an invalid prime. NOTE: some sources refer to this as a use-after-free issue.

Read the notes from the security team

Status

Package Ubuntu Release Status
openssl 10.04 LTS lucid
Fixed 0.9.8k-7ubuntu8.3
9.10 karmic
Fixed 0.9.8g-16ubuntu3.3
9.04 jaunty
Fixed 0.9.8g-15ubuntu3.6
8.04 LTS hardy
Fixed 0.9.8g-4ubuntu3.11
6.06 LTS dapper
Fixed 0.9.8a-7ubuntu0.13
openssl097 10.04 LTS lucid Not in release
9.10 karmic Not in release
9.04 jaunty Not in release
8.04 LTS hardy Not in release
6.06 LTS dapper Ignored

Notes

sbeattie

possibly stopped by glibc's double-free heap protection, CVE asserts that it's needed in 0.9.7, though the referenced email from solar designer claims that it's not needed in 0.9.7 as ECDH hadn't been introduced yet as of openssl 0.9.7m.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
openssl

References

Related Ubuntu Security Notices (USN)

    • USN-1003-1
    • OpenSSL vulnerabilities
    • 7 October 2010

Other references