CVE-2014-2897

The SSL 3 HMAC functionality in wolfSSL CyaSSL 2.5.0 before 2.9.4 does not check the padding length when verification fails, which allows remote attackers to…

published January 28, 2020

CVSS
—
EPSS
3%
Percentile
86.1
In the wild
Unconfirmed
What it is

⚠️ A sneaky padding issue in wolfSSL could let an attacker slip in undetected! An oversight in HMAC verification might just open the door for trouble. 🔍 Think of it like a waiter who serves a dish but forgets to check if any allergens are in it — one small oversight could turn a pleasant meal into a disaster! If exploited, this vulnerability could lead to out-of-bounds reads, opening the door for unexpected behavior or data leaks. While there are no confirmed exploits out there, the potential for an attacker to manipulate the HMAC is absolutely concerning!

Put simply

Think of it like a waiter who serves a dish but forgets to check if any allergens are in it — one small oversight could turn a pleasant meal into a disaster! This flaw in wolfSSL's SSL 3 HMAC functionality fails to properly check the padding length when verification fails, allowing for an out-of-bounds read to occur.

What to do

If exploited, this vulnerability could lead to out-of-bounds reads, opening the door for unexpected behavior or data leaks. While there are no confirmed exploits out there, the potential for an attacker to manipulate the HMAC is absolutely concerning! Update your wolfSSL to version 2.9.4 or later to ensure this issue is patched. Regularly review your cryptographic libraries and maintain a good security hygiene around SSL implementations. 🛡️ You've got this! Stay vigilant and keep those libraries up to date for a safer environment! 💪

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02770 · 86.1th percentile
Published
2020-01-28T15:41Z
EPSS history
Timeline
  • 28 JAN 15:41Z
    The SSL 3 HMAC functionality in wolfSSL CyaSSL 2.5.0 before 2.9.4 does not check the padding length when verification fails, which allows remote attackers to…
    cvelistv5