How severe is CVE-2008-2377?

CVE-2008-2377 has a CVSS 2.0 base score of 7.6, rated high severity.

Is CVE-2008-2377 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-2377?

CVE-2008-2377 primarily affects Gnu Gnutls. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-2377?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2008-2377 published?

CVE-2008-2377 was published on 2008-08-08 and last updated on 2026-06-16.

CVE-2008-2377

CVE-2008-2377 is a high-severity vulnerability in Gnu Gnutls with a CVSS 2.0 base score of 7.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 2.0 base score 7.6)
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Gnu Gnutls
Published: 2008-08-08
Last modified: 2026-06-16

Description

Use-after-free vulnerability in the _gnutls_handshake_hash_buffers_clear function in lib/gnutls_handshake.c in libgnutls in GnuTLS 2.3.5 through 2.4.0 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via TLS transmission of data that is improperly used when the peer calls gnutls_handshake within a normal session, leading to attempted access to a deallocated libgcrypt handle.

Frequently asked questions

What is CVE-2008-2377?: Use-after-free vulnerability in the _gnutls_handshake_hash_buffers_clear function in lib/gnutls_handshake.c in libgnutls in GnuTLS 2.3.5 through 2.4.0 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via TLS transmission of data that is improperly used when the peer calls gnutls_handshake within a normal session, leading to attempted access to a deallocated libgcrypt handle.
How severe is CVE-2008-2377?: CVE-2008-2377 has a CVSS 2.0 base score of 7.6, rated high severity.
Is CVE-2008-2377 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-2377?: CVE-2008-2377 primarily affects Gnu Gnutls. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-2377?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2008-2377 published?: CVE-2008-2377 was published on 2008-08-08 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:gnu:gnutls:2.3.5:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:2.3.6:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:2.3.7:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:2.3.8:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:2.3.9:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:2.4.0:*:*:*:*:*:*:*

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