CVE-2017-7526: Infoleak
First published: Thu Jul 26 2018(Updated: )
Last updated 24 July 2024
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Libgcrypt | <1.7.8 | |
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 | |
| Debian Linux | =8.0 | |
| Debian Linux | =9.0 | |
| debian/gnupg1 | 1.4.23-1.1 1.4.23-3 | |
| debian/gnupg2 | 2.2.27-2+deb11u2 2.2.40-1.1 2.2.46-6 2.4.7-14 | |
| debian/libgcrypt20 | 1.8.7-6 1.10.1-3 1.11.0-7 |
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Reference Links
- http://www.securityfocus.com/bid/99338
- http://www.securitytracker.com/id/1038915
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7526
- https://eprint.iacr.org/2017/627
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=78130828e9a140a9de4dafadbc844dbb64cb709a
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=8725c99ffa41778f382ca97233183bcd687bb0ce
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=e6a3dc9900433bbc8ad362a595a3837318c28fa9
- https://lists.gnupg.org/pipermail/gnupg-announce/2017q2/000408.html
- https://usn.ubuntu.com/3733-1/
- https://usn.ubuntu.com/3733-2/
- https://www.debian.org/security/2017/dsa-3901
- https://www.debian.org/security/2017/dsa-3960
- https://launchpad.net/bugs/cve/CVE-2017-7526
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=78130828e9a140a9de4dafadbc844dbb64cb709a
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=8725c99ffa41778f382ca97233183bcd687bb0ce
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=e6a3dc9900433bbc8ad362a595a3837318c28fa9
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=a9f612def801c8145d551d995475e5d51a4c988c
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=aff5fd0f2650e24cf99efcd7b499627ea48782c3
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=312101e1f266314b4391fcdbe11c03de5c147e38
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=0e6788517eac6f508fa32ec5d5c1cada7fb980bc
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=fbd10abc057453789017f11c7f1fc8e6c61b79a3
- https://lists.gnupg.org/pipermail/gnupg-users/2017-July/058598.html
- https://dev.gnupg.org/rC8725c99ffa41778f382ca97233183bcd687bb0ce
- https://dev.gnupg.org/D438
- https://security-tracker.debian.org/tracker/CVE-2017-7526
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7526
- https://nvd.nist.gov/vuln/detail/CVE-2017-7526
- https://ubuntu.com/security/CVE-2017-7526
Frequently Asked Questions
What is the severity of CVE-2017-7526?
CVE-2017-7526 has been classified as a high severity vulnerability due to its potential to allow complete breakage of RSA-1024 and RSA-2048 implementations.
How do I fix CVE-2017-7526?
To mitigate CVE-2017-7526, upgrade to libgcrypt version 1.7.8 or later along with relevant updates to affected software packages.
Which software is affected by CVE-2017-7526?
CVE-2017-7526 affects libgcrypt versions before 1.7.8, as well as specific versions of gnupg1 and gnupg2 on Debian and Ubuntu distributions.
What impact does CVE-2017-7526 have on RSA encryption?
CVE-2017-7526 allows attackers to exploit cache side-channel vulnerabilities that can completely break RSA encryption implementations using affected versions.
When was CVE-2017-7526 disclosed?
CVE-2017-7526 was disclosed on July 24, 2024, although the vulnerability itself has existed in libgcrypt versions prior to 1.7.8.
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