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Vulnerability record · CVE-2008-2377 · published 8 August 2008

CVE-2008-2377: Gnutls memory buffer overflow vulnerability

Gnu · Gnutls

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.

7.6 CVSS 2.0 High EPSS 5.5% · top 7.5% CWE-119 · Memory buffer overflow
7.6CVSS 2.0 base score
5.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References, 2 tagged exploit
16 Jun 2026Last modified by NVD

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.

AV:N/AC:H/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2008-1948Gnutls vulnerabilityThe _gnutls_server_name_recv_params function in lib/ext_server_name.c in libgnutls in gnutls-serv in GnuTLS before 2.2.4 does not properly calculate …EPSS 12%9.8CVE-2026-42010Gnutls vulnerabilityA flaw was found in gnutls. Servers configured with RSA-PSK (Rivest–Shamir–Adleman – Pre-Shared Key) wrongfully matched usernames containing a NUL ch…EPSS 0.94%9.8CVE-2021-20231Gnutls use after free vulnerabilityA flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences.EPSS 3.8%9.8CVE-2021-20232Gnutls use after free vulnerabilityA flaw was found in gnutls. A use after free issue in client_send_params in lib/ext/pre_shared_key.c may lead to memory corruption and other potentia…EPSS 3.4%9.8CVE-2017-5334Opensuse leap double free vulnerabilityDouble free vulnerability in the gnutls_x509_ext_import_proxy function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote attackers to have…EPSS 33%9.8CVE-2017-5336Opensuse leap memory buffer overflow vulnerabilityStack-based buffer overflow in the cdk_pk_get_keyid function in lib/opencdk/pubkey.c in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote att…EPSS 7.1%9.8CVE-2017-5337Opensuse leap memory buffer overflow vulnerabilityMultiple heap-based buffer overflows in the read_attribute function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allow remote attackers to have uns…EPSS 6.2%9.8CVE-2009-3555TLS/SSL renegotiation flaw allows plaintext injection into sessionsThe TLS protocol and SSL 3.0 do not properly bind renegotiation handshakes to the existing connection, so a man-in-the-middle can inject data that th…EPSS 87%analysed

Source: NIST National Vulnerability Database (record CVE-2008-2377), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.