CVE-2013-1618

Severity: medium (CVSS 4.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-02-08 · updated 2026-06-16
Weakness: CWE-310

Description

The TLS implementation in Opera before 12.13 does not properly consider timing side-channel attacks on a MAC check operation during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, a related issue to CVE-2013-0169.

Affected products

Opera Browser: through 12.12; 12.00, 12.00-beta, 12.01, 12.02, 12.10, 12.10-beta (+1)

References

http://lists.opensuse.org/opensuse-updates/2013-02/msg00038.html
http://openwall.com/lists/oss-security/2013/02/05/24
http://www.isg.rhul.ac.uk/tls/TLStiming.pdf
http://www.opera.com/docs/changelogs/unified/1213/
http://www.opera.com/support/kb/view/1044/
http://lists.opensuse.org/opensuse-updates/2013-02/msg00038.html
http://openwall.com/lists/oss-security/2013/02/05/24
http://www.isg.rhul.ac.uk/tls/TLStiming.pdf
http://www.opera.com/docs/changelogs/unified/1213/
http://www.opera.com/support/kb/view/1044/

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