Information disclosure in Gnupg
CVE-2013-4242
GnuPG before 1.4.14, and Libgcrypt before 1.5.3 as used in GnuPG 2.0.x and possibly other products, allows local users to obtain private RSA keys via a cache side-channel attack involving the L3 cache, aka Flush+Reload.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v2 metric
CVSS v2 base score 1.9 (Low). Vector: AV:L/AC:M/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.005 (44.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Gnupg — versions 0.0.0, 0.2.15, 0.2.16
- Gnupg Libgcrypt — versions 1.4.0, 1.4.3, 1.4.4
- Canonical Ubuntu Linux — versions 10.04, 12.04, 12.10
- Debian Linux — versions 6.0, 7.0
- openSUSE — versions 12.2, 12.3
Weakness classification (CWE)
References
- www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- www.debian.org/security/2013/dsa-2731 (vendor-advisory)
- secunia.com/advisories/54332 (Vendor Advisory, third-party-advisory)
- secunia.com/advisories/54321 (Vendor Advisory, third-party-advisory)
- secunia.com/advisories/54375 (Vendor Advisory, third-party-advisory)
- lists.opensuse.org/opensuse-updates/2013-08/msg00003.html (vendor-advisory, Vendor Advisory)
- www.securityfocus.com/bid/61464 (vdb-entry)
- www.ubuntu.com/usn/USN-1923-1 (vendor-advisory, Vendor Advisory)
- eprint.iacr.org/2013/448
- lists.gnupg.org/pipermail/gnupg-announce/2013q3/000330.html (mailing-list)