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Debian Security Advisory DSA 3336-1 (nss - security update)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

4.3

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Solution Type

Solution Type

Vendor Patch

Created

Created

6 years ago

Modified

Modified

3 years ago

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Summary

Several vulnerabilities have been discovered in nss, the Mozilla Network Security Service library. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2015-2721 Karthikeyan Bhargavan discovered that NSS incorrectly handles state transitions for the TLS state machine. A man-in-the-middle attacker could exploit this flaw to skip the ServerKeyExchange message and remove the forward-secrecy property. CVE-2015-2730 Watson Ladd discovered that NSS does not properly perform Elliptical Curve Cryptography (ECC) multiplication, allowing a remote attacker to potentially spoof ECDSA signatures.

Affected Software

Affected Software

nss on Debian Linux

Detection Method

Detection Method

This check tests the installed software version using the apt package manager.

Solution

Solution

For the oldstable distribution (wheezy), these problems have been fixed in version 2:3.14.5-1+deb7u5. For the stable distribution (jessie), these problems have been fixed in version 2:3.17.2-1.1+deb8u1. For the testing distribution (stretch), these problems have been fixed in version 2:3.19.1-1. For the unstable distribution (sid), these problems have been fixed in version 2:3.19.1-1. We recommend that you upgrade your nss packages.

Common Vulnerabilities and Exposures (CVE)

References

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