Vulnerability in Google Chrome
CVE-2012-4929
The TLS protocol 1.2 and earlier, as used in Mozilla Firefox, Google Chrome, Qt, and other products, can encrypt compressed data without properly obfuscating the length of the unencrypted data, which allows man-in-the-middle attackers to obtain plaintext HTTP headers by observing length differences during a series of guesses in which a string in an HTTP request potentially matches an unknown string in an HTTP header, aka a "CRIME" attack.
Vulnerability class: POODLE (CVE-2014-3566)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 2.6 (Low). Vector: AV:N/AC:H/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.043 (90.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.043 · newest: 0.043 · change: 0.000
Affected products
- Google Chrome
- Mozilla Firefox
- Debian Linux — versions 7.0, 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- marc.info/ (vendor-advisory)
- rhn.redhat.com/errata/RHSA-2013-0587.html (vendor-advisory)
- www.debian.org/security/2012/dsa-2579 (vendor-advisory)
- gist.github.com/3696912
- www.iacr.org/cryptodb/data/paper.php
- lists.fedoraproject.org/pipermail/package-announce/2013-April/101366.html (vendor-advisory)
- www.ubuntu.com/usn/USN-1898-1 (vendor-advisory)
- chromiumcodereview.appspot.com/10825183
- lists.opensuse.org/opensuse-updates/2012-10/msg00096.html (vendor-advisory)
- threatpost.com/en_us/blogs/crime-attack-uses-compression-ratio-tls-requests-sid…
Frequently asked questions
- What is CVE-2012-4929?
- CVE-2012-4929 is a vulnerability in Google Chrome, classified under Cryptographic Issues. Published 2012-09-15.
- Is CVE-2012-4929 known to be exploited?
- 63 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.