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CVE-2007-5135

Off-by-one error in the SSL_get_shared_ciphers function in OpenSSL 0.9.7 up to 0.9.7l, and 0.9.8 up to 0.9.8f, might allow remote attackers to execute arbitrary code via a crafted packet that triggers a one-byte buffer underflow. NOTE: this issue was introduced as a result of a fix for CVE-2006-3738. As of 20071012, it is unknown whether code execution is possible.

Severity
Medium 6.8
Published
27 Sept 2007
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
16% in the next 30 daysHigher than 96% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-189
Attack
Over the network · No login needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSLServers and applications · cpe:a:openssl:openssl
  • Version 0.9.8f
  • Version 0.9.8e
  • Version 0.9.8d
  • Version 0.9.8c
All 26 release lines
  • Version 0.9.7-beta1
  • Version 0.9.7-beta2
  • Version 0.9.7-beta3
  • Version 0.9.7-beta4
  • Version 0.9.7-beta5
  • Version 0.9.7-beta6
  • Version 0.9.7
  • Version 0.9.7a
  • Version 0.9.7b
  • Version 0.9.7c
  • Version 0.9.7d
  • Version 0.9.7e
  • Version 0.9.7f
  • Version 0.9.7g
  • Version 0.9.7h
  • Version 0.9.7i
  • Version 0.9.7j
  • Version 0.9.7k
  • Version 0.9.7l
  • Version 0.9.8
  • Version 0.9.8a
  • Version 0.9.8b
  • Version 0.9.8c
  • Version 0.9.8d
  • Version 0.9.8e
  • Version 0.9.8f

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2007-5135
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2007-5135