6.8

CVE-2012-4559: libssh Resource Management Errors

CVSS: 6.8v2.0MediumModified
AliasesDEBIAN-CVE-2012-4559
Published 30-11-2012Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2012-4559 is a medium (CVSS 6.8) Resource Management Errors vulnerability in libssh. EPSS estimates a 5.18% chance of exploitation in the next 30 days, higher than 92.3% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.8/10
010
Medium · v2.0 (NVD)
EPSS score
5.18%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
DSA-2577-1OPENSUSE-SU-2024:10036-1

Timeline

  1. 30-11-2012
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

Multiple double free vulnerabilities in the (1) agent_sign_data function in agent.c, (2) channel_request function in channels.c, (3) ssh_userauth_pubkey function in auth.c, (4) sftp_parse_attr_3 function in sftp.c, and (5) try_publickey_from_file function in keyfiles.c in libssh before 0.5.3 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

5.18%

Chance of exploitation in the next 30 days

Percentile

92%

Versus all other CVEs

30-day change

0.00 pp

From 5.18% on 19-09-2026

19-09-202619-10-2026
EPSS score
5.18%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • libssh< 0.5.3-1
Libssh1 product
  • libssh≤ 0.5.2 | 0.4.7 | 0.4.8 | 0.5.0 | 0.5.0:rc1 | 0.5.1

2 vendors · 2 products

References

14 links
Show all 14 references