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CVE-2015-7511

Libgcrypt before 1.6.5 does not properly perform elliptic-point curve multiplication during...

2.0 LowFix available

Libgcrypt before 1.6.5 does not properly perform elliptic-point curve multiplication during decryption, which makes it easier for physically proximate attackers to extract ECDH keys by measuring electromagnetic emanations.

Attack profile

How easy it is to exploit

Attack vector
Physical
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
None

Exploit likelihood

0.43%Down 1.1 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 2.0

Libgcrypt before 1.6.5 does not properly perform elliptic-point curve multiplication during decryption, which makes it easier for physically proximate attackers to extract ECDH keys by measuring electromagnetic emanations.

Record
CVE-2015-7511
CVSS 3.0
2.0 LowCVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0
1.9 LowAV:L/AC:M/Au:N/C:P/I:N/A:N
Weakness
CWE-200
Updated
2026-11-02
CVE List No score

Libgcrypt before 1.6.5 does not properly perform elliptic-point curve multiplication during decryption, which makes it easier for physically proximate attackers to extract ECDH keys by measuring electromagnetic emanations.

Record
CVE-2015-7511
Updated
2026-11-02
EUVDEUVD-2015-7432 No score

Libgcrypt before 1.6.5 does not properly perform elliptic-point curve multiplication during decryption, which makes it easier for physically proximate attackers to extract ECDH keys by measuring electromagnetic emanations.

Record
EUVD-2015-7432
Updated
2026-11-03
GitHub AdvisoriesGHSA-2c62-8p8p-hh5w 2.0

Libgcrypt before 1.6.5 does not properly perform elliptic-point curve multiplication during...

Libgcrypt before 1.6.5 does not properly perform elliptic-point curve multiplication during decryption, which makes it easier for physically proximate attackers to extract ECDH keys by measuring electromagnetic emanations.

Record
GHSA-2c62-8p8p-hh5w
CVSS 3.0
2.0 LowCVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-200
Updated
2026-11-02
OSVBELL-CVE-2015-7511 2.0

CVE-2015-7511 does not affect BellSoft software

Record
BELL-CVE-2015-7511
CVSS 3.0
2.0 LowCVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
OSV 2.0

Libgcrypt before 1.6.5 does not properly perform elliptic-point curve multiplication during decryption, which makes it easier for physically proximate attackers to extract ECDH keys by measuring electromagnetic emanations.

Record
CVE-2015-7511
CVSS 3.0
2.0 LowCVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
Show 8 moreShow less
OSVDEBIAN-CVE-2015-7511 2.0

Libgcrypt before 1.6.5 does not properly perform elliptic-point curve multiplication during decryption, which makes it easier for physically proximate attackers to extract ECDH keys by measuring electromagnetic emanations.

Record
DEBIAN-CVE-2015-7511
CVSS 3.0
2.0 LowCVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2015-7511 2.0

Libgcrypt before 1.6.5 does not properly perform elliptic-point curve multiplication during decryption, which makes it easier for physically proximate attackers to extract ECDH keys by measuring electromagnetic emanations.

Record
UBUNTU-CVE-2015-7511
CVSS 3.0
2.0 LowCVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
OSVMGASA-2016-0072 No score

Updated libgcrypt packages fix security vulnerabilities

Updated libgcrypt packages fix security vulnerability:

Daniel Genkin, Lev Pachmanov, Itamar Pipman and Eran Tromer discovered that the ECDH secret decryption keys in applications using the libgcrypt20 library could be leaked via a side-channel attack (CVE-2015-7511).

The libgcrypt package was also updated to include countermeasures against Lenstra's fault attack on RSA Chinese Remainder Theorem optimization in RSA. A signature verification step was updated to protect against leaks of private keys in case of hardware faults or implementation errors in numeric libraries. This issue is equivalent to the CVE-2015-5738 issue in gnupg.

Record
MGASA-2016-0072
Updated
2026-11-02
OSVopenSUSE-SU-2024:10037-1 No score

libgcrypt-cavs-1.7.3-1.3 on GA media

These are all security issues fixed in the libgcrypt-cavs-1.7.3-1.3 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10037-1
Updated
2026-11-02
OSVSUSE-SU-2016:1089-1 No score

Security update for libgcrypt

libgcrypt was updated to fix one security issue.

This security issue was fixed:

  • CVE-2015-7511: Side-channel attack on ECDH with Weierstrass curves (bsc#965902).
Record
SUSE-SU-2016:1089-1
Updated
2026-11-02
OSVSUSE-SU-2017:2699-1 No score

Security update for SLES 12 Docker image

The SUSE Linux Enterprise Server 12 container image has been updated to include security and stability fixes.

The following issues related to building of the container images have been fixed:

  • Included krb5 package to avoid the inclusion of krb5-mini which gets selected as a dependency by the Build Service solver. (bsc#1056193)
  • Do not install recommended packages when building container images. (bsc#975726)

A number of security issues that have been already fixed by updates released for SUSE Linux Enterprise Server 12 are now included in the base image. A package/CVE cross-reference is available below.

pam:

  • CVE-2015-3238

libtasn1:

  • CVE-2015-3622
  • CVE-2016-4008

libidn:

  • CVE-2015-2059
  • CVE-2015-8948
  • CVE-2016-6261
  • CVE-2016-6262
  • CVE-2016-6263

zlib:

  • CVE-2016-9840
  • CVE-2016-9841
  • CVE-2016-9842
  • CVE-2016-9843

curl:

  • CVE-2016-5419
  • CVE-2016-5420
  • CVE-2016-5421
  • CVE-2016-7141
  • CVE-2016-7167
  • CVE-2016-8615
  • CVE-2016-8616
  • CVE-2016-8617
  • CVE-2016-8618
  • CVE-2016-8619
  • CVE-2016-8620
  • CVE-2016-8621
  • CVE-2016-8622
  • CVE-2016-8623
  • CVE-2016-8624
  • CVE-2016-9586
  • CVE-2017-1000100
  • CVE-2017-1000101
  • CVE-2017-7407

openssl:

  • CVE-2016-2105
  • CVE-2016-2106
  • CVE-2016-2107
  • CVE-2016-2108
  • CVE-2016-2109
  • CVE-2016-2177
  • CVE-2016-2178
  • CVE-2016-2179
  • CVE-2016-2180
  • CVE-2016-2181
  • CVE-2016-2182
  • CVE-2016-2183
  • CVE-2016-6302
  • CVE-2016-6303
  • CVE-2016-6304
  • CVE-2016-6306

libxml2:

  • CVE-2014-0191
  • CVE-2015-8806
  • CVE-2016-1762
  • CVE-2016-1833
  • CVE-2016-1834
  • CVE-2016-1835
  • CVE-2016-1837
  • CVE-2016-1838
  • CVE-2016-1839
  • CVE-2016-1840
  • CVE-2016-2073
  • CVE-2016-3627
  • CVE-2016-3705
  • CVE-2016-4447
  • CVE-2016-4448
  • CVE-2016-4449
  • CVE-2016-4483
  • CVE-2016-4658
  • CVE-2016-9318
  • CVE-2016-9597
  • CVE-2017-9047
  • CVE-2017-9048
  • CVE-2017-9049
  • CVE-2017-9050

util-linux:

  • CVE-2015-5218
  • CVE-2016-5011
  • CVE-2017-2616

cracklib:

  • CVE-2016-6318

systemd:

  • CVE-2014-9770
  • CVE-2015-8842
  • CVE-2016-7796

pcre:

  • CVE-2014-8964
  • CVE-2015-2325
  • CVE-2015-2327
  • CVE-2015-2328
  • CVE-2015-3210
  • CVE-2015-3217
  • CVE-2015-5073
  • CVE-2015-8380
  • CVE-2015-8381
  • CVE-2015-8382
  • CVE-2015-8383
  • CVE-2015-8384
  • CVE-2015-8385
  • CVE-2015-8386
  • CVE-2015-8387
  • CVE-2015-8388
  • CVE-2015-8389
  • CVE-2015-8390
  • CVE-2015-8391
  • CVE-2015-8392
  • CVE-2015-8393
  • CVE-2015-8394
  • CVE-2015-8395
  • CVE-2016-1283
  • CVE-2016-3191

appamor:

  • CVE-2017-6507

bash:

  • CVE-2014-6277
  • CVE-2014-6278
  • CVE-2016-0634
  • CVE-2016-7543

cpio:

  • CVE-2016-2037

glibc:

  • CVE-2016-1234
  • CVE-2016-3075
  • CVE-2016-3706
  • CVE-2016-4429
  • CVE-2017-1000366

perl:

  • CVE-2015-8853
  • CVE-2016-1238
  • CVE-2016-2381
  • CVE-2016-6185

libssh2_org:

  • CVE-2016-0787

expat:

  • CVE-2012-6702
  • CVE-2015-1283
  • CVE-2016-0718
  • CVE-2016-5300
  • CVE-2016-9063
  • CVE-2017-9233

ncurses:

  • CVE-2017-10684
  • CVE-2017-10685
  • CVE-2017-11112
  • CVE-2017-11113

libksba:

  • CVE-2016-4574
  • CVE-2016-4579

libgcrypt:

  • CVE-2015-7511
  • CVE-2016-6313
  • CVE-2017-7526

dbus-1:

  • CVE-2014-7824
  • CVE-2015-0245

Finally, the following packages received non-security fixes:

  • augeas
  • bzip2
  • ca-certificates-mozilla
  • coreutils
  • cryptsetup
  • cyrus-sasl
  • dirmngr
  • e2fsprogs
  • findutils
  • gpg2
  • insserv-compat
  • kmod
  • libcap
  • libsolv
  • libzypp
  • openldap2
  • p11-kit
  • permissions
  • procps
  • rpm
  • sed
  • shadow
  • zypper
Record
SUSE-SU-2017:2699-1
Updated
2026-11-02
OSVSUSE-SU-2017:2700-1 No score

Security update for SLES 12-SP1 Docker image

The SUSE Linux Enterprise Server 12 SP1 container image has been updated to include security and stability fixes.

The following issues related to building of the container images have been fixed:

  • Included krb5 package to avoid the inclusion of krb5-mini which gets selected as a dependency by the Build Service solver. (bsc#1056193)
  • Do not install recommended packages when building container images. (bsc#975726)

A number of security issues that have been already fixed by updates released for SUSE Linux Enterprise Server 12 SP1 are now included in the base image. A package/CVE cross-reference is available below.

pam:

  • CVE-2015-3238

libtasn1:

  • CVE-2015-3622
  • CVE-2016-4008

expat:

expat:

  • CVE-2012-6702
  • CVE-2015-1283
  • CVE-2016-0718
  • CVE-2016-5300
  • CVE-2016-9063
  • CVE-2017-9233

libidn:

  • CVE-2015-2059
  • CVE-2015-8948
  • CVE-2016-6261
  • CVE-2016-6262
  • CVE-2016-6263

zlib:

  • CVE-2016-9840
  • CVE-2016-9841
  • CVE-2016-9842
  • CVE-2016-9843

curl:

  • CVE-2016-5419
  • CVE-2016-5420
  • CVE-2016-5421
  • CVE-2016-7141
  • CVE-2016-7167
  • CVE-2016-8615
  • CVE-2016-8616
  • CVE-2016-8617
  • CVE-2016-8618
  • CVE-2016-8619
  • CVE-2016-8620
  • CVE-2016-8621
  • CVE-2016-8622
  • CVE-2016-8623
  • CVE-2016-8624
  • CVE-2016-9586
  • CVE-2017-1000100
  • CVE-2017-1000101
  • CVE-2017-7407

openssl:

  • CVE-2016-2105
  • CVE-2016-2106
  • CVE-2016-2107
  • CVE-2016-2108
  • CVE-2016-2109
  • CVE-2016-2177
  • CVE-2016-2178
  • CVE-2016-2179
  • CVE-2016-2180
  • CVE-2016-2181
  • CVE-2016-2182
  • CVE-2016-2183
  • CVE-2016-6302
  • CVE-2016-6303
  • CVE-2016-6304
  • CVE-2016-6306
  • CVE-2016-7056
  • CVE-2016-8610
  • CVE-2017-3731

cracklib:

  • CVE-2016-6318

pcre:

  • CVE-2014-8964
  • CVE-2015-2325
  • CVE-2015-2327
  • CVE-2015-2328
  • CVE-2015-3210
  • CVE-2015-3217
  • CVE-2015-5073
  • CVE-2015-8380
  • CVE-2015-8381
  • CVE-2015-8382
  • CVE-2015-8383
  • CVE-2015-8384
  • CVE-2015-8385
  • CVE-2015-8386
  • CVE-2015-8387
  • CVE-2015-8388
  • CVE-2015-8389
  • CVE-2015-8390
  • CVE-2015-8391
  • CVE-2015-8392
  • CVE-2015-8393
  • CVE-2015-8394
  • CVE-2015-8395
  • CVE-2016-1283
  • CVE-2016-3191

appamor:

  • CVE-2017-6507

bash:

  • CVE-2014-6277
  • CVE-2014-6278
  • CVE-2016-0634
  • CVE-2016-7543

cpio:

  • CVE-2016-2037

glibc:

  • CVE-2016-1234
  • CVE-2016-3075
  • CVE-2016-3706
  • CVE-2016-4429
  • CVE-2017-1000366

perl:

  • CVE-2015-8853
  • CVE-2016-1238
  • CVE-2016-2381
  • CVE-2016-6185

libssh2_org:

  • CVE-2016-0787

util-linux:

  • CVE-2016-5011
  • CVE-2017-2616

ncurses:

  • CVE-2017-10684
  • CVE-2017-10685
  • CVE-2017-11112
  • CVE-2017-11113

libksba:

  • CVE-2016-4574
  • CVE-2016-4579

libxml2:

  • CVE-2014-0191
  • CVE-2015-8806
  • CVE-2016-1762
  • CVE-2016-1833
  • CVE-2016-1834
  • CVE-2016-1835
  • CVE-2016-1837
  • CVE-2016-1838
  • CVE-2016-1839
  • CVE-2016-1840
  • CVE-2016-2073
  • CVE-2016-3627
  • CVE-2016-3705
  • CVE-2016-4447
  • CVE-2016-4448
  • CVE-2016-4449
  • CVE-2016-4483
  • CVE-2016-4658
  • CVE-2016-9318
  • CVE-2016-9597
  • CVE-2017-9047
  • CVE-2017-9048
  • CVE-2017-9049
  • CVE-2017-9050

libgcrypt:

  • CVE-2015-7511
  • CVE-2016-6313
  • CVE-2017-7526

update-alternatives:

  • CVE-2015-0860

systemd:

  • CVE-2014-9770
  • CVE-2015-8842
  • CVE-2016-7796

dbus-1:

  • CVE-2014-7824
  • CVE-2015-0245

Finally, the following packages received non-security fixes:

  • augeas
  • bzip2
  • ca-certificates-mozilla
  • coreutils
  • cryptsetup
  • cyrus-sasl
  • dirmngr
  • e2fsprogs
  • findutils
  • gpg2
  • insserv-compat
  • kmod
  • libcap
  • libsolv
  • libzypp
  • lua51
  • lvm2
  • netcfg
  • p11-kit
  • permissions
  • procps
  • rpm
  • sed
  • sg3_utils
  • shadow
  • zypper
Record
SUSE-SU-2017:2700-1
Updated
2026-11-02
OSVUSN-2896-1 No score

libgcrypt11, libgcrypt20 vulnerability

Daniel Genkin, Lev Pachmanov, Itamar Pipman and Eran Tromer discovered that Libgcrypt was susceptible to an attack via physical side channels. A local attacker could use this attack to possibly recover private keys.

Record
USN-2896-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
libgcrypt20
Debian:12
 before 1.6.5-2
1.6.5-2
libgcrypt20
Debian:13
 before 1.6.5-2
1.6.5-2
libgcrypt20
Debian:14
 before 1.6.5-2
1.6.5-2
libgcrypt20
Debian:8
 before 1.6.3-2+deb8u1, plus listed versions
1.6.3-2
1.6.3-2+deb8u1
libgcrypt11
Debian:7
 before 1.5.0-5+deb7u4, plus listed versions
1.5.0-51.5.0-5+deb7u11.5.0-5+deb7u21.5.0-5+deb7u3
1.5.0-5+deb7u4
libgcrypt
Mageia:5
 before 1.5.4-5.2.mga5
1.5.4-5.2.mga5
libgcrypt
SUSE:Linux Enterprise Desktop 12
 before 1.6.1-16.27.1
1.6.1-16.27.1
libgcrypt
SUSE:Linux Enterprise Desktop 12 SP1
 before 1.6.1-16.27.1
1.6.1-16.27.1
libgcrypt
SUSE:Linux Enterprise Software Development Kit 12
 before 1.6.1-16.27.1
1.6.1-16.27.1
libgcrypt
SUSE:Linux Enterprise Software Development Kit 12 SP1
 before 1.6.1-16.27.1
1.6.1-16.27.1
Show 6 moreShow less
Affected packages
PackageAffectedFixed
libgcrypt
SUSE:Linux Enterprise Server 12
 before 1.6.1-16.27.1
1.6.1-16.27.1
libgcrypt
SUSE:Linux Enterprise Server for SAP Applications 12
 before 1.6.1-16.27.1
1.6.1-16.27.1
libgcrypt
SUSE:Linux Enterprise Server 12 SP1
 before 1.6.1-16.27.1
1.6.1-16.27.1
libgcrypt
SUSE:Linux Enterprise Server for SAP Applications 12 SP1
 before 1.6.1-16.27.1
1.6.1-16.27.1
libgcrypt11
Ubuntu:14.04:LTS
 before 1.5.3-2ubuntu4.3, plus listed versions
1.5.0-3ubuntu31.5.3-2ubuntu11.5.3-2ubuntu41.5.3-2ubuntu4.11.5.3-2ubuntu4.2
1.5.3-2ubuntu4.3
libgcrypt
openSUSE:Tumbleweed
From an advisory covering 6 CVEs
 before 1.7.3-1.3
1.7.3-1.3

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-7511 is a low vulnerability (CVSS 2.0) in Gnupg Libgcrypt, published December 31, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.43%, the 37th percentile. Fixed in libgcrypt20 1.6.5-2.

References

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