CVE-2016-1000341
published 2018-06-04CVE-2016-1000341: In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature generation is vulnerable to timing attack. Where timings can be closely observed for…
PriorityP430medium5.9CVSS 3.0
AVNACHPRNUINSUCHINAN
EPSS
2.61%
83.7th percentile
In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature generation is vulnerable to timing attack. Where timings can be closely observed for the generation of signatures, the lack of blinding in 1.55, or earlier, may allow an attacker to gain information about the signature's k value and ultimately the private value as well.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| bouncycastle | bc-java | <= 1.55 | — |
| debian | bouncycastle | < bouncycastle 1.56-1 (bookworm) | bouncycastle 1.56-1 (bookworm) |
| debian | debian_linux | — | — |
CVSS provenance
nvdv3.05.9MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
osv5.9MEDIUM
vendor_debian5.9MEDIUM
vendor_redhat5.9MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
OSV
Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15
osv·2018-10-17
CVE-2016-1000341 [MEDIUM] Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15
Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15
In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature generation is vulnerable to timing attack. Where timings can be closely observed for the generation of signatures, the lack of blinding in 1.55, or earlier, may allow an attacker to gain information about the signature's k value and ultimately the private value as well.
GHSA
Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15
ghsa·2018-10-17
CVE-2016-1000341 [MEDIUM] Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15
Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15
In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature generation is vulnerable to timing attack. Where timings can be closely observed for the generation of signatures, the lack of blinding in 1.55, or earlier, may allow an attacker to gain information about the signature's k value and ultimately the private value as well.
OSV
CVE-2016-1000341: In the Bouncy Castle JCE Provider version 1
osv·2018-06-04·CVSS 5.9
CVE-2016-1000341 [MEDIUM] CVE-2016-1000341: In the Bouncy Castle JCE Provider version 1
In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature generation is vulnerable to timing attack. Where timings can be closely observed for the generation of signatures, the lack of blinding in 1.55, or earlier, may allow an attacker to gain information about the signature's k value and ultimately the private value as well.
Ubuntu
Bouncy Castle vulnerabilities
vendor_ubuntu·2018-08-01
CVE-2015-6644 Bouncy Castle vulnerabilities
Title: Bouncy Castle vulnerabilities
Summary: Several security issues were fixed in Bouncy Castle.
It was discovered that Bouncy Castle incorrectly handled certain crypto
algorithms. A remote attacker could possibly use these issues to obtain
sensitive information, including private keys.
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
bouncycastle: Information exposure in DSA signature generation via timing attack
vendor_redhat·2018-06-07·CVSS 5.9
CVE-2016-1000341 [MEDIUM] CWE-385 bouncycastle: Information exposure in DSA signature generation via timing attack
bouncycastle: Information exposure in DSA signature generation via timing attack
In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature generation is vulnerable to timing attack. Where timings can be closely observed for the generation of signatures, the lack of blinding in 1.55, or earlier, may allow an attacker to gain information about the signature's k value and ultimately the private value as well.
Statement: This issue affects the versions of bouncycastle as shipped with Red Hat Subscription Asset Manager 1.x. Red Hat Product Security has rated this issue as having a security impact of Moderate. No update is planned for this product at this time. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/clas
Debian
CVE-2016-1000341: bouncycastle - In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature generat...
vendor_debian·2016·CVSS 5.9
CVE-2016-1000341 [MEDIUM] CVE-2016-1000341: bouncycastle - In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature generat...
In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature generation is vulnerable to timing attack. Where timings can be closely observed for the generation of signatures, the lack of blinding in 1.55, or earlier, may allow an attacker to gain information about the signature's k value and ultimately the private value as well.
Scope: local
bookworm: resolved (fixed in 1.56-1)
bullseye: resolved (fixed in 1.56-1)
forky: resolved (fixed in 1.56-1)
sid: resolved (fixed in 1.56-1)
trixie: resolved (fixed in 1.56-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-0495 ROHNP: Key Extraction Side Channel in Multiple Crypto Libraries
bugzilla·2018-06-14·CVSS 4.7
CVE-2018-0495 [MEDIUM] CVE-2018-0495 ROHNP: Key Extraction Side Channel in Multiple Crypto Libraries
CVE-2018-0495 ROHNP: Key Extraction Side Channel in Multiple Crypto Libraries
An implementation flaw was discovered in multiple cryptographic libraries that allows a side-channel based attacker to recover ECDSA or DSA private keys. When these cryptographic libraries use the private key to create a signature, such as for a TLS or SSH connection, they inadvertently leak information through memory caches. An unprivileged attacker running on the same machine can collect the information from a few thousand signatures and recover the value of the private key.
External References:
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/
Discussion:
Created botan tracking bugs for this issue:
Affects: epel-all [bug 1591169]
Affects: fedora-all [bug 1
Bugzilla
CVE-2016-1000341 bouncycastle: Information exposure in DSA signature generation via timing attack [fedora-all]
bugzilla·2018-06-07·CVSS 5.9
CVE-2016-1000341 [MEDIUM] CVE-2016-1000341 bouncycastle: Information exposure in DSA signature generation via timing attack [fedora-all]
CVE-2016-1000341 bouncycastle: Information exposure in DSA signature generation via timing attack [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue af
Bugzilla
CVE-2016-1000341 bouncycastle: Information exposure in DSA signature generation via timing attack
bugzilla·2018-06-07·CVSS 5.9
CVE-2016-1000341 [MEDIUM] CVE-2016-1000341 bouncycastle: Information exposure in DSA signature generation via timing attack
CVE-2016-1000341 bouncycastle: Information exposure in DSA signature generation via timing attack
In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature
generation is vulnerable to timing attack. Where timings can be closely observed
for the generation of signatures, the lack of blinding in 1.55, or earlier, may
allow an attacker to gain information about the signature's k value and
ultimately the private value as well.
Upstream patch:
https://github.com/bcgit/bc-java/commit/acaac81f96fec91ab45bd0412beaf9c3acd8defa#diff-e75226a9ca49217a7276b29242ec59ce
Discussion:
Created bouncycastle tracking bugs for this issue:
Affects: epel-all [bug 1588711]
Affects: fedora-all [bug 1588709]
---
(In reply to Pedro Sampaio from comment #1)
> Affects: fedora-all [bug 1588709]
F
Bugzilla
CVE-2016-1000341 bouncycastle: Information exposure in DSA signature generation via timing attack [epel-all]
bugzilla·2018-06-07·CVSS 5.9
CVE-2016-1000341 [MEDIUM] CVE-2016-1000341 bouncycastle: Information exposure in DSA signature generation via timing attack [epel-all]
CVE-2016-1000341 bouncycastle: Information exposure in DSA signature generation via timing attack [epel-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affect
https://access.redhat.com/errata/RHSA-2018:2669https://access.redhat.com/errata/RHSA-2018:2927https://github.com/bcgit/bc-java/commit/acaac81f96fec91ab45bd0412beaf9c3acd8defa#diff-e75226a9ca49217a7276b29242ec59cehttps://lists.debian.org/debian-lts-announce/2018/07/msg00009.htmlhttps://security.netapp.com/advisory/ntap-20181127-0004/https://usn.ubuntu.com/3727-1/https://www.oracle.com/security-alerts/cpuoct2020.htmlhttps://access.redhat.com/errata/RHSA-2018:2669https://access.redhat.com/errata/RHSA-2018:2927https://github.com/bcgit/bc-java/commit/acaac81f96fec91ab45bd0412beaf9c3acd8defa#diff-e75226a9ca49217a7276b29242ec59cehttps://lists.debian.org/debian-lts-announce/2018/07/msg00009.htmlhttps://security.netapp.com/advisory/ntap-20181127-0004/https://usn.ubuntu.com/3727-1/https://www.oracle.com/security-alerts/cpuoct2020.html
2018-06-04
Published