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CVE-2007-3108

Publication date 7 August 2007

Last updated 24 July 2024


Ubuntu priority

Negligible

Why this priority?

The BN_from_montgomery function in crypto/bn/bn_mont.c in OpenSSL 0.9.8e and earlier does not properly perform Montgomery multiplication, which might allow local users to conduct a side-channel attack and retrieve RSA private keys.

From the Ubuntu Security Team

It was discovered that OpenSSL did not correctly perform Montgomery multiplications. Local attackers might be able to reconstruct RSA private keys by examining another user's OpenSSL processes.

Status

Package Ubuntu Release Status
openssl 9.10 karmic
Fixed 0.9.8e-5ubuntu2
9.04 jaunty
Fixed 0.9.8e-5ubuntu2
8.10 intrepid
Fixed 0.9.8e-5ubuntu2
8.04 LTS hardy
Fixed 0.9.8e-5ubuntu2
7.10 gutsy
Fixed 0.9.8e-5ubuntu2
7.04 feisty
Fixed 0.9.8c-4ubuntu0.1
6.10 edgy
Fixed 0.9.8b-2ubuntu2.1
6.06 LTS dapper
Fixed 0.9.8a-7ubuntu0.4
openssl097 9.10 karmic Not in release
9.04 jaunty Not in release
8.10 intrepid Not in release
8.04 LTS hardy Not in release
7.10 gutsy Not in release
7.04 feisty Ignored end of life, was needed
6.10 edgy Ignored end of life, was needed
6.06 LTS dapper Ignored end of life

References

Related Ubuntu Security Notices (USN)

    • USN-522-1
    • openssl vulnerabilities
    • 28 September 2007

Other references