CVE-2007-3108

Publication date 7 August 2007

Last updated 24 July 2024

Ubuntu priority

Negligible

Why this priority?

Description

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 in 0.9.8e-5ubuntu2
9.04 jaunty
Fixed in 0.9.8e-5ubuntu2
8.10 intrepid
Fixed in 0.9.8e-5ubuntu2
8.04 LTS hardy
Fixed in 0.9.8e-5ubuntu2
7.10 gutsy
Fixed in 0.9.8e-5ubuntu2
7.04 feisty
Fixed in 0.9.8c-4ubuntu0.1
6.10 edgy
Fixed in 0.9.8b-2ubuntu2.1
6.06 LTS dapper
Fixed in 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

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